//<script language="JavaScript">	
function Setstyle(size){		
document.getElementsByTagName("link")[0].disabled = true;		document.getElementsByTagName("link")[1].disabled = true;
AW=screen.availWidth;		
AH=screen.availHeight;		
if(size==""){size="1024x768";}		
if((AW<1024 && AH<768) || size=="800x600"){			document.getElementsByTagName("link")[1].disabled = true;			document.getElementsByTagName("link")[0].disabled = false;		
}else{			
document.getElementsByTagName("link")[0].disabled = true;			document.getElementsByTagName("link")[1].disabled = false;		
}	
}	
//</script>