javascript fullscreen全屏实现代码

<script type="text/javascript" language="javascript"> 
function fullscreen() 
{ 
win = window.open("Main.aspx","_blank","resizable=yes;status=yes;toolbar=no;location=no;menubar=no;directories=no;scrollbars=no;"); 
window.opener=null; 
window.open('','_self'); 
window.close(); 
win.moveTo(0,0); 
win.resizeTo(screen.availWidth,screen.availHeight); 
} 
</script>