How to use window.innerWidth

[Jiasheng]

<script language="JavaScript"><!--if (navigator.appVersion.substring(0,1) >= 4) {    var width = window.innerWidth;    if (width > 900) { document.write("<link href='http://www.lomontimt.com/quotes/style1.css' rel='stylesheet' type='text/css'>"); }    else { document.write("<link href='http://www.lomontimt.com/quotes/style2.css' rel='stylesheet' type='text/css'>"); }}else { document.write("<link href='http://www.lomontimt.com/quotes/style1.css' rel='stylesheet' type='text/css'>"); }//--></script>

I set up the above Javascript to switch between two style sheets. User with screen resolution 1024x768 will be presented with style1.css, and those with smaller resolution will be presented with style2.css. But it seems that the parameter window.innerWidth is not working. Style sheet 2 is presented all the times regardless of the screen resolution. Appreciate very much if anyone could help me!

[scott100]

try screen.width

<script language="JavaScript"><!--if (navigator.appVersion.substring(0,1) >= 4) {   var width = screen.width;   alert(width);   if (width > 900) { document.write("<link href='http://www.lomontimt.com/quotes/style1.css' rel='stylesheet' type='text/css'>"); }   else { document.write("<link href='http://www.lomontimt.com/quotes/style2.css' rel='stylesheet' type='text/css'>"); }}else { document.write("<link href='http://www.lomontimt.com/quotes/style1.css' rel='stylesheet' type='text/css'>"); }//--></script>

[Jiasheng]

Yes, it works! Thank you!