var winW = 0, winH = 0;
	if (parseInt(navigator.appVersion)>3) {
	 if (navigator.appName=="Netscape") {
	  winW = window.innerWidth-16;
	  winH = window.innerHeight-16;
	 }
	 if (navigator.appName.indexOf("Microsoft")!=-1) {
	  winW = document.body.offsetWidth;
	  winH = document.body.offsetHeight;
	 }
	}
	
	if (winW <= 640) {
	  document.write('<link href="http://sysnekpro.com/design/z_style-PDA.css" rel="stylesheet" type="text/css" />');
	}