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Trang Chủ Học JS Quản lý sinh viên - Lập trình Javascript

Quản lý sinh viên - Lập trình Javascript

by GokiSoft.com - 23:42 30/10/2021 4,421 Lượt Xem

Xây dựng một website như sau


Yêu cầu :

Hoàn thành các chức năng : Thêm, sửa, xoá như hình trên.

Mục manafacturer name -> Chứa danh sách các nhà sản xuất (Apple, SamSung, LG, Sony, Google)

Khi lựa chọn từng danh mục trên thì sẽ xuất hiện trong mục : Category Name tương ứng các loại sản phâm của nhà sản xuất đó

Ví dụ : chọn apple thì category name sẽ xuất hiện IPhone, Ipad, IPod,...

Khi người dùng điện price và quantity thì sẽ tự tính giá trị cho TotalPrice = price * quantity

Bình luận



Chia sẻ từ lớp học

Nguyễn Tiến Đạt [T2008A]

Ngày viết: 00:31 26/10/2020


#quanlisanphamversioncaocap.html

hộc máu
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Quản lí sản phẩm</title>
    <style>
        .main{
            border: 1px solid #4970a3;
            border-radius: 5px;
            width: 800px;
            height: 472px;
            display: block;
        }
        .top{
            background-color: #4970a3;
            width: 99.4%;
            height: 30px;
            padding-left: 5px;
            padding-top: 5px;
            color: white;
        }
        ul{
            list-style-type: none;
        }
        li{
            margin-bottom: 16px;
        }
    </style>
    <script>
        function changeManufacturer() {
            var v=document.getElementById('select1').value;
            switch(v){
                case '--Select--':
                    document.getElementById('nsx').value='';
                    document.getElementById('nsx').disabled= true;
                break;    
                case 'Apple':
                    var manu1=document.getElementById('nsx');
                        manu1.innerHTML=`
                        <option>--Select--</option>
                        <option>Iphone X</option>
                        <option>Ipad</option>
                        <option>Ipad Pro</option>
                        `
                        manu1.disabled = false
                break;  
                case 'Vsmart':
                    var manu2=document.getElementById('nsx');
                        manu2.innerHTML=`
                        <option>--Select--</option>
                        <option>Vsmart Active 1 plus</option>
                        <option>Vsmart Live</option>
                        <option>Vsmart Joy</option>
                        `
                        manu2.disabled = false
                break;  
                case 'Samsung':
                    var manu3=document.getElementById('nsx');
                        manu3.innerHTML=`
                        <option>--Select--</option>
                        <option>Samsung Tab</option>
                        <option>Samsung Galaxy</option>
                        <option>Samsung Note</option>
                        `
                        manu3.disabled = false
                break;
            }
        }
        function tinhtoan() {
            var x=document.getElementById('fm_price').value
            var y=document.getElementById('fm_quantity').value
            if(isNaN(x)||isNaN(y)){
                alert('Price or Quantity must be a number!!')
                return
            }
            if(x!='' && y!=''){
                document.getElementById('fm_sum').value=x*y
            }
            if(x=='' || y==''){
                document.getElementById('fm_sum').value=''
            }
        }
        var bigList=[];
        var count=0;
        var check2=0
        function addproduct() {
            var getname=document.getElementById('name').value;
            var getcategoryname=document.getElementById('nsx').value;
            var getprice=document.getElementById('fm_price').value;
            var getquantity=document.getElementById('fm_quantity').value;
            var getmanu=document.getElementById('select1').value;
            if(getname==''|| getcategoryname==''|| getprice==''|| getquantity==''|| getmanu==''){
                alert('Please fill all forms!!');
                return
            }
            if(isNaN(getprice)||isNaN(getquantity)){
                alert('Price or Quantity must be a number!!')
                return
            }
            if(getcategoryname=='--Select--'){
                alert('Please choose your category name!!')
                return
            }
            if(count==0){
                var node = document.createElement("TH");                                                     
                document.getElementById("headtable").appendChild(node);
                var node1 = document.createElement("TH");                                                     
                document.getElementById("headtable").appendChild(node1);
                count++;
            }
            var smallList={
                listname: getname,
                listcategoryname: getcategoryname,
                listprice: getprice,
                listquantity: getquantity,
                listmanu: getmanu
            }
            if(position==-1){
                add(smallList)
            }
            else{
                bigList[position]=smallList;
                position=-1;
                document.getElementById('btn_register').innerHTML='Add products'
                display()
            }
            check2++
        }
        function display() {
            var m=document.getElementById('bodytable')
            m.innerHTML=''
            for(i=0;i<bigList.length;i++){
                var smallList=bigList[i]
                console.log(smallList)
                m.innerHTML+=`
                <tr>
                    <td>${i+1}</td>
                    <td>${smallList.listname}</td>
                    <td>${smallList.listcategoryname}</td>
                    <td>${smallList.listprice}</td>
                    <td>${smallList.listquantity}</td>
                    <td>${smallList.listmanu}</td>
                    <td><div onclick="Edit(${i})" style="border-radius: 3px;border: 1px solid rgb(235, 174, 84);background-color: rgb(235, 174, 84);color: white;padding: 5px;cursor: pointer;">Edit</div></td>
                    <td><div onclick="Delete(${i})" style="border-radius: 3px;border: 1px solid rgb(224, 85, 85);background-color:  rgb(224, 85, 85);color: white;padding: 5px;cursor: pointer;">Delete</div></td>
                </tr>
                `
                localStorage.setItem('soluong',i+1)
                localStorage.setItem('ten'+i,smallList.listname)
                localStorage.setItem('tensanpham'+i,smallList.listcategoryname)
                localStorage.setItem('giasanpham'+i,smallList.listprice)
                localStorage.setItem('soluongsanpham'+i,smallList.listquantity)
                localStorage.setItem('hangsanpham'+i,smallList.listmanu)
            }
        }
        var countcheck=0   
        var countcheck1=0      
        function add(smallList) {
            bigList.push(smallList)
            var m=document.getElementById('bodytable')
                m.innerHTML+=`
                <tr>
                    <td>${bigList.length}</td>
                    <td>${smallList.listname}</td>
                    <td>${smallList.listcategoryname}</td>
                    <td>${smallList.listprice}</td>
                    <td>${smallList.listquantity}</td>
                    <td>${smallList.listmanu}</td>
                    <td><div onclick="Edit(${bigList.length -1})" style="border-radius: 3px;border: 1px solid rgb(235, 174, 84);background-color: rgb(235, 174, 84);color: white;padding: 5px;cursor: pointer;">Edit</div></td>
                    <td><div onclick="Delete(${bigList.length -1})" style="border-radius: 3px;border: 1px solid rgb(224, 85, 85);background-color:  rgb(224, 85, 85);color: white;padding: 5px;cursor: pointer;">Delete</div></td>
                </tr>
                `
                if(localStorage.getItem('soluong')<1){
                    localStorage.setItem('soluong',bigList.length)
                    localStorage.setItem('ten'+(bigList.length-1),smallList.listname)
                    localStorage.setItem('tensanpham'+(bigList.length-1),smallList.listcategoryname)
                    localStorage.setItem('giasanpham'+(bigList.length-1),smallList.listprice)
                    localStorage.setItem('soluongsanpham'+(bigList.length-1),smallList.listquantity)
                    localStorage.setItem('hangsanpham'+(bigList.length-1),smallList.listmanu)
                    countcheck++
                    countcheck1++
                    return
                }   
                if(localStorage.getItem('soluong')!=0){
                    if(countcheck1!=0){
                        var dem=parseInt(localStorage.getItem('soluong'))
                        localStorage.setItem('soluong',dem+countcheck)
                        localStorage.setItem('ten'+(dem+countcheck-1),smallList.listname)
                        localStorage.setItem('tensanpham'+(dem+countcheck-1),smallList.listcategoryname)
                        localStorage.setItem('giasanpham'+(dem+countcheck-1),smallList.listprice)
                        localStorage.setItem('soluongsanpham'+(dem+countcheck-1),smallList.listquantity)
                        localStorage.setItem('hangsanpham'+(dem+countcheck-1),smallList.listmanu)
                    }else{
                        var dem=parseInt(localStorage.getItem('soluong'))
                        localStorage.setItem('soluong',dem+1)
                        localStorage.setItem('ten'+(dem),smallList.listname)
                        localStorage.setItem('tensanpham'+(dem),smallList.listcategoryname)
                        localStorage.setItem('giasanpham'+(dem),smallList.listprice)
                        localStorage.setItem('soluongsanpham'+(dem),smallList.listquantity)
                        localStorage.setItem('hangsanpham'+(dem),smallList.listmanu)
                    }
                    return
                }
        }

        function resetall() {
            document.getElementsByTagName('form')[0].reset()
            document.getElementById('nsx').value='';
            document.getElementById('nsx').disabled=true;
        }
        var position=-1;
        function Edit(index) {
            position=index;
            var smallList= bigList[index];
            console.log(smallList)
            document.getElementById('name').value=smallList.listname;
            document.getElementById('fm_price').value=smallList.listprice;
            document.getElementById('fm_quantity').value=smallList.listquantity;
            document.getElementById('select1').value=smallList.listmanu;
            changeManufacturer()
            document.getElementById('nsx').value=smallList.listcategoryname;
            document.getElementById('btn_register').innerHTML='Update'
        }
        function Delete(index) {
            var m=document.getElementById('bodytable')
            m.innerHTML=''
            bigList.splice(index,1)
            for(i=0;i<bigList.length;i++){
                localStorage.removeItem('ten'+i)
                localStorage.removeItem('tensanpham'+i)
                localStorage.removeItem('giasanpham'+i)
                localStorage.removeItem('soluongsanpham'+i)
                localStorage.removeItem('hangsanpham'+i)
            }
           
            for(i=0;i<bigList.length;i++){
                var smallList=bigList[i]
                localStorage.setItem('soluong',bigList.length)
                localStorage.setItem('ten'+i,smallList.listname)
                localStorage.setItem('tensanpham'+i,smallList.listcategoryname)
                localStorage.setItem('giasanpham'+i,smallList.listprice)
                localStorage.setItem('soluongsanpham'+i,smallList.listquantity)
                localStorage.setItem('hangsanpham'+i,smallList.listmanu)
                m.innerHTML+=`
                <tr>
                    <td>${i+1}</td>
                    <td>${smallList.listname}</td>
                    <td>${smallList.listcategoryname}</td>
                    <td>${smallList.listprice}</td>
                    <td>${smallList.listquantity}</td>
                    <td>${smallList.listmanu}</td>
                    <td><div onclick="Edit(${i})" style="border-radius: 3px;border: 1px solid rgb(235, 174, 84);background-color: rgb(235, 174, 84);color: white;padding: 5px;cursor: pointer;">Edit</div></td>
                    <td><div onclick="Delete(${i})" style="border-radius: 3px;border: 1px solid rgb(224, 85, 85);background-color:  rgb(224, 85, 85);color: white;padding: 5px;cursor: pointer;">Delete</div></td>
                </tr>
                `
                countcheck--
            }
           
            if(bigList.length==0){
                var list = document.getElementById("headtable");
                list.removeChild(list.childNodes[6]);
                list.removeChild(list.childNodes[6]);
                count=0
            }
        }
        var check1=0
        function Showdatasaved() {
            if(localStorage.getItem('soluong')<1){
                alert('No data saved!!')
                return
            }
            if(count==0){
                var node = document.createElement("TH");                                                     
                document.getElementById("headtable").appendChild(node);
                var node1 = document.createElement("TH");                                                     
                document.getElementById("headtable").appendChild(node1);
                count++;
            }
            if(check1==0){
                if(bigList.length==0){
                    for(i=0;i<localStorage.getItem('soluong');i++){
                        var smallList={
                            listname: localStorage.getItem('ten'+i),
                            listcategoryname: localStorage.getItem('tensanpham'+i),
                            listprice: localStorage.getItem('giasanpham'+i),
                            listquantity: localStorage.getItem('soluongsanpham'+i),
                            listmanu: localStorage.getItem('hangsanpham'+i)
                        }
                        bigList.push(smallList)
                    }
                    for(i=0;i<bigList.length;i++){
                        var m=document.getElementById('bodytable')
                        m.innerHTML+=`
                        <tr>
                            <td>${i+1}</td>
                            <td>${bigList[i].listname}</td>
                            <td>${bigList[i].listcategoryname}</td>
                            <td>${bigList[i].listprice}</td>
                            <td>${bigList[i].listquantity}</td>
                            <td>${bigList[i].listmanu}</td>
                            <td><div onclick="Edit(${i})" style="border-radius: 3px;border: 1px solid rgb(235, 174, 84);background-color: rgb(235, 174, 84);color: white;padding: 5px;cursor: pointer;">Edit</div></td>
                            <td><div onclick="Delete(${i})" style="border-radius: 3px;border: 1px solid rgb(224, 85, 85);background-color:  rgb(224, 85, 85);color: white;padding: 5px;cursor: pointer;">Delete</div></td>
                        </tr>
                        `
                    }
                }else{
                    var x=localStorage.getItem('soluong')-bigList.length
                    for(i=0;i<x;i++){
                        var smallList={
                            listname: localStorage.getItem('ten'+i),
                            listcategoryname: localStorage.getItem('tensanpham'+i),
                            listprice: localStorage.getItem('giasanpham'+i),
                            listquantity: localStorage.getItem('soluongsanpham'+i),
                            listmanu: localStorage.getItem('hangsanpham'+i)
                        }
                        bigList.push(smallList)
                    }
                    for(i=x-1;i<bigList.length;i++){
                        var m=document.getElementById('bodytable')
                        m.innerHTML+=`
                        <tr>
                            <td>${i+1}</td>
                            <td>${bigList[i].listname}</td>
                            <td>${bigList[i].listcategoryname}</td>
                            <td>${bigList[i].listprice}</td>
                            <td>${bigList[i].listquantity}</td>
                            <td>${bigList[i].listmanu}</td>
                            <td><div onclick="Edit(${i})" style="border-radius: 3px;border: 1px solid rgb(235, 174, 84);background-color: rgb(235, 174, 84);color: white;padding: 5px;cursor: pointer;">Edit</div></td>
                            <td><div onclick="Delete(${i})" style="border-radius: 3px;border: 1px solid rgb(224, 85, 85);background-color:  rgb(224, 85, 85);color: white;padding: 5px;cursor: pointer;">Delete</div></td>
                        </tr>
                        `
                       
                    }
                    for(i=0;i<bigList.length;i++){
                        localStorage.setItem('soluong',bigList.length)
                        localStorage.setItem('ten'+i,bigList[i].listname)
                        localStorage.setItem('tensanpham'+i,bigList[i].listcategoryname)
                        localStorage.setItem('giasanpham'+i,bigList[i].listprice)
                        localStorage.setItem('soluongsanpham'+i,bigList[i].listquantity)
                        localStorage.setItem('hangsanpham'+i,bigList[i].listmanu)
                    }
                }
                
            }else{
                alert('Already show all data saved!!')
                return
            }
        }
    </script>
</head>
<body>
    <div class="main">
        <div class="top">
            Input product's detail information
        </div>
        <form>
            <ul>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Product Name</div>
                    <input type="text" style="width: 706px;height: 22px;background-color:#f7f69e;border: 1px solid grey;" id="name">
                </li>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Category Name</div>
                    <select type="text" style="width: 712px;height: 29px;border: 1px solid grey;" id="nsx" disabled>
                    </select>
                </li>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Price</div>
                    <input type="text" style="width: 706px;height: 22px;border: 1px solid grey;" id="fm_price" onkeyup="tinhtoan()">
                </li>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Quantity</div>
                    <input type="text" style="width: 706px;height: 22px;border: 1px solid grey;" id="fm_quantity" onkeyup="tinhtoan()">
                </li>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Total Price</div>
                    <input type="text" style="width: 706px;height: 22px;border: 1px solid grey;background-color: rgb(241, 232, 232);" id="fm_sum" disabled>
                </li>
                <li>
                    <div style="font-weight: bold; font-family: Arial, Helvetica, sans-serif;">Manufacturer Name</div>
                    <select type="text" onchange="changeManufacturer()" style="width: 712px;height: 29px;border: 1px solid grey;" id="select1">
                        <option>--Select--</option>
                        <option value="Apple">Apple</option>
                        <option value="Vsmart">Vsmart</option>
                        <option value="Samsung">Samsung</option>
                    </select>
                </li>
                <div style="display: flex;">
                    <div id="btn_register" onclick="addproduct()" style="border: 1px solid rgb(91, 202, 118);border-radius: 3px;color: white;padding: 5px;background-color: rgb(91, 202, 118);margin-right: 8px;cursor: pointer;">Add products</div>
                    <div onclick="resetall()" style="border: 1px solid rgb(235, 174, 84);border-radius: 3px;color: white;padding: 5px;background-color: rgb(235, 174, 84);cursor: pointer;">Reset</div>
                    <div id="showdata" onclick="Showdatasaved()" style="border: 1px solid rgb(244, 76, 71);border-radius: 3px;color: white;padding: 5px;background-color: rgb(244, 76, 71);cursor: pointer;margin-left: 438px;">Show data saved</div>
                </div>
            </ul>
        </form>
    </div>
    <br><br><br>
    <table border="1" cellspacing='0' cellpadding="5">
        <caption style="background-color: #4970a3;color: white;height: 30px;padding-top: 8px;">Management Products</caption>
        <thead>
            <tr id="headtable">
                <th>No</th>
                <th>Product Name</th>
                <th>Category name</th>
                <th>Price</th>
                <th>Quantity</th>
                <th>Manufacturer Name</th>
            </tr>
        </thead>
        <tbody id="bodytable">
        </tbody>
    </table>
</body>
</html>


Nguyễn Xuân Mai [T2008A]

Ngày viết: 22:27 24/10/2020



<!DOCTYPE html>
<html>
<head>
	<title>Quan ly san pham</title>
</head>
<body>
	<table border="1" cellspacing="0" cellpadding="5" style="border-color: blue">
		<tr style="background-color: blue; color: white; text-align: left;"><th>Input product's detail information</th></tr>
		<tr ><td>
			<label>Product Name></label>
			<br>
			<input type="number" name="index" id="index" value="" hidden="true">
			<input type="text" name="product" id="product" style="background-color: #f5dec1; width: 700px">
			<br>
			<label>Manufacturer Name</label>
			<br>
			<select id="mname" onchange="changemanuf()">
				<option>-- Manufacturer --</option>
			</select>
			<br>
			<label>Category Name</label>
			<br>
			<select id="category"></select>
			<br>
			<label>Price</label>
			<br>
			<input type="text" name="price" id="price" style=" width: 700px" onkeyup="updateTotalPrice()">
			<br>
			<label>Quantity</label>
			<br>
			<input type="text" name="quantity" style=" width: 700px" id="quantity" onkeyup="updateTotalPrice()">
			<br>
			<label>Total Price</label>
			<br>
			<input type="text" name="product" id="totalprice" style="background-color: #ccc8be; width: 700px">
			<br>
			<button class="btn btn-success" type="button" onclick="addPro()">Add Product</button>
			<button class="btn btn-danger" type="reset" onclick="reset()">Reset</button>
			<button onclick="saveData()">Save</button>
		</td></tr>
	</table>
	<br>
	<table border="1" cellspacing="0" cellpadding="3">
		<tr style="background-color: blue; color: white; text-align: left;"><th>Management Products</th></tr>
		<tr><td>
			<table border="1" cellspacing="0">
			<thead>
			<tr>
				<th>No</th>
				<th>Product name</th>
				<th>Manufacturer name</th>
				<th>Category name</th>
				<th>Price</th>
				<th>Quantity</th>
			</tr>
			</thead>
			<tbody id="result">
			</tbody>
		</table>
		</td></tr>
	</table>

	<script type="text/javascript">
		var manufactureList = {
			"Apple": [
				"IPhone", "IPad", "IPod"
			],
			"Samsung": [
				"Galaxy S5", "Galaxy 10"
			],
			"LG": [
				"Television", "Laptop", "Fridge"
			],
			"Sony": [
				"Television", "Playstation", "Camera"
			],
			"Google": [
				"Pixel", "Stadia", "Nest"
			]
		}

		var productList = []

		var manuafaturerTag = document.getElementById('mname')
		for(var key in manufactureList) {
			manuafaturerTag.innerHTML += `<option value='${key}'>${key}</option>`
		}

		function changemanuf() {
			key = manuafaturerTag.value
			categoryList = manufactureList[key]
			console.log(categoryList)

			var categoryTag = document.getElementById('category')
			categoryTag.innerHTML = ''

			if(categoryList != null) {
				for (var i = 0; i < categoryList.length; i++) {
					categoryTag.innerHTML += `<option value='${categoryList[i]}'>${categoryList[i]}</option>`
				}
			}
		}
		
		function updateTotalPrice() {
			var price = document.getElementById('price').value
			var quantity = document.getElementById('quantity').value
			totalprice = price * quantity
			document.getElementById('totalprice').value = totalprice
		}

		var count = 0;

		function addPro() {
			var index = document.getElementById('index').value
			var productName = document.getElementById('product').value
			var manufactureName = document.getElementById('mname').value
			var categoryName = document.getElementById('category').value
			var price = document.getElementById('price').value
			var quantity = document.getElementById('quantity').value
			var totalPrice = document.getElementById('totalprice').value

			var product = {
				'productName': productName,
				'manufactureName': manufactureName,
				'categoryName': categoryName,
				'price': price,
				'quantity': quantity,
				'totalPrice': totalPrice
			}

			if(index != '') {
				productList[index] = product
				showProduct()
				return;
			}

			productList.push(product)

			document.getElementById('result').innerHTML += `<tr>
						<td>${++count}</td>
						<td>${productName}</td>
						<td>${manufactureName}</td>
						<td>${categoryName}</td>
						<td>${price}</td>
						<td>${quantity}</td>
						<td>${totalPrice}</td>
						<td><button class="btn btn-warning" onclick="editProduct(${count - 1})">Edit</button></td>
						<td><button class="btn btn-danger" onclick="deleteProduct(${count - 1})">Delete</button></td>
					</tr>`
		}

		function deleteProduct(index) {
			console.log(index)
			productList.splice(index, 1)
			showProduct();
		}

		function showProduct() {
			document.getElementById('result').innerHTML = ''

			for (var i = 0; i < productList.length; i++) {
				document.getElementById('result').innerHTML += `<tr>
						<td>${i+1}</td>
						<td>${productList[i].productName}</td>
						<td>${productList[i].manufactureName}</td>
						<td>${productList[i].categoryName}</td>
						<td>${productList[i].price}</td>
						<td>${productList[i].quantity}</td>
						<td>${productList[i].totalPrice}</td>
						<td><button class="btn btn-warning" onclick="editProduct(${i})">Edit</button></td>
						<td><button class="btn btn-danger" onclick="deleteProduct(${i})">Delete</button></td>
					</tr>`
			}
		}

		function editProduct(index) {
			var product = productList[index]
			console.log(product)
			document.getElementById('index').value = index
			document.getElementById('product').value = product.productName
			document.getElementById('mname').value = product.manufactureName
			changemanuf()
			document.getElementById('category').value = product.categoryName
			document.getElementById('price').value = product.price
			document.getElementById('quantity').value = product.quantity
			document.getElementById('totalprice').value = product.totalPrice
		}

		function reset(){
        	document.getElementById('product').value=''
        	document.getElementById('mname').value='--Manufacturer--'
        	document.getElementById('category').value=''
        	document.getElementById('price').value=''
        	document.getElementById('quantity').value=''
        	document.getElementById('totalprice').value=''
        }

        function saveData() {
			product=document.getElementById('product').value
        	manufacturer=document.getElementById('mname').value
        	category=document.getElementById('category').value
        	price=document.getElementById('price').value
        	quantity=document.getElementById('quantity').value
        	totalprice=document.getElementById('totalprice').value

			console.log(product)
			console.log(manufacturer)
			console.log(category)
			console.log(price)
			console.log(quantity)
			console.log(totalprice)

			localStorage.setItem('product', product)
			localStorage.setItem('mname', manufacturer)
			localStorage.setItem('category', category)
			localStorage.setItem('quantity', quantity)
			localStorage.setItem('totalprice', totalprice)

			return true;
		}
	</script>
</body>
</html>


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