/***********************************************
* Limit number of checked checkboxes script- by JavaScript Kit (www.javascriptkit.com)
* This notice must stay intact for usage
* Visit JavaScript Kit at http://www.javascriptkit.com/ for this script and 100s more
***********************************************/
function checkboxlimit(checkgroup, limit){
var checkgroup=checkgroup
var limit=limit
for (var i=0; i<checkgroup.length; i++){
checkgroup.onclick=function(){
var checkedcount=0
for (var i=0; i<checkgroup.length; i++)
checkedcount+=(checkgroup.checked)? 1 : 0
if (checkedcount>limit){
alert("คุณสามารถเลือกได้ไม่เกิน "+limit+" checkboxes")
this.checked=false
}
}
}
}
</script>
2.นำโค้ดส่วนนี้ไปใส่ไว้ใน <body>....</body>
<p>Select your favorite two countries below:</p>
Load balance : Server 01
