关于checkbox处理
<!-- Created by TopStyle Trial - www.topstyle4.com -->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title></title>
</head>
<script type="text/javascript">
function checkAll(input1,input2){
var allcheck = document.forms[input1];
var str='';
var lengthall = allcheck.length;
for(var count=0; count < lengthall ; count++){
if(input2.checked == true){
if(allcheck.elements[count].type == "checkbox"){
allcheck.elements[count].checked= true;
if(str != ''){
str += allcheck.elements[count].value+",";
}else{
str= allcheck.elements[count].value+","
}
}
}else{
if(allcheck.elements[count].type == "checkbox"){
allcheck.elements[count].checked= false;
}
}
}
alert(str);
}
</script>
<body>
<input type="checkbox" onclick="checkAll('testForm',this)">
<form id="testForm" name="testForm">
<input type="checkbox" value="1">
<input type="checkbox" value="2">
<input type="checkbox" value="3">
<input type="checkbox" value="4">
<input type="checkbox" value="5">
</form>
</body>
</html>
