javascript

Shopping cart selected to get a price implementation example


<!DOCTYPE html>
<html>
<head>
<title>MyCart1.html</title>

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">

<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<script language = "javascript" type = "text/javascript">

function jisuan(obj){

var total = 0;
var fruits = document.getElementsByName("fruit");
for(var i=0;i<fruits.length;i++){
if(fruits[i].checked){
total += parseFloat(fruits[i].value);
}
}
myspan.innerText = total + " yuan ";
}
</script>
</head>

<body>
<input type = "checkbox" name = "fruit" value = "10" onclick = "jisuan(this)"> apple  10 yuan <br/>
<input type = "checkbox" name = "fruit" value = "20" onclick = "jisuan(this)"> banana  20 yuan <br/>
<input type = "checkbox" name = "fruit" value = "30" onclick = "jisuan(this)"> watermelon  30 yuan <br/>
<input type = "checkbox" name = "fruit" value = "40" onclick = "jisuan(this)"> chestnuts  40 yuan <br/>
<input type = "checkbox" name = "fruit" value = "50" onclick = "jisuan(this)"> Hami melon  50 yuan <br/><br/>
 The total price is: <span id = "myspan">0 yuan </span>
</body>
</html>