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