var stylesheet,x,y;

if (self.innerHeight) // all except Explorer
{
	x = self.innerWidth;
	y = self.innerHeight;
}
else if (document.documentElement && document.documentElement.clientHeight)
	// Explorer 6 Strict Mode
{
	x = document.documentElement.clientWidth;
	y = document.documentElement.clientHeight;
}
else if (document.body) // other Explorers
{
	x = document.body.clientWidth;
	y = document.body.clientHeight;
}

if (x>=1025) {
 stylesheet = 'css/screen_mozilla_1280.css'
}
else {
 stylesheet = 'css/screen_mozilla_1024.css';
}

document.writeln('<link href="' + stylesheet +'" rel="stylesheet" type="text/css" >');