JS禁用用户刷新

 

<script language="javascript" type="text/javascript">

document.onkeydown = function()

{

/*

(ctrlKey == true && keyCode == 82) Ctrl+R ---刷新

(keyCode == 116) F5 ---刷新

(ctrlKey == true && keyCode == 116) Ctrl+F5 ---强制刷新

*/

//window.alert(event.keyCode);

var k = event.keyCode;

if((event.ctrlKey == true && k == 82) || (k == 116) || (event.ctrlKey == true && k == 116))

{

//return (window.confirm("关闭?"));

event.keyCode = 0;

event.returnValue = false;

event.cancelBubble = true;

}

}

</script>