var browserName=navigator.appName; 
 if (browserName=="Microsoft Internet Explorer")
 {
document.write('<link rel="stylesheet" href="windowfiles/maincnalt.css" type="text/css">');
}
else
{
document.write('<link rel="stylesheet" href="windowfiles/maincn.css" type="text/css">');
}

document.oncontextmenu = function() {
return false;
}

function win1(url,mheight,mwidth){
eval('window.open(url,"","height='+mheight+'px,width='+mwidth+'px,menubar=yes,toolbar=yes,location=yes,directories=no,resizable=yes,scrollbars=yes,left=10,top=10")')
}

function win2(url,mheight,mwidth){
eval('window.open(url,"","height='+mheight+'px,width='+mwidth+'px,location=no,resizable=yes,scrollbars=yes,left=10,top=10")')
}