var myHeight =0;

if( typeof( window.innerHeight ) == 'number' ) 
	{
	//Non-IE
	myHeight = window.innerHeight;
	//alert(myHeight);
	} 
else 
{
	if( document.documentElement &&( document.documentElement.clientHeight || document.documentElement.clientHeight ) ) 
		{
		//IE 6+ in 'standards compliant mode'
		myHeight = document.documentElement.clientHeight;
		//alert(myHeight);
		} 
	else 
	{
		if( document.body && ( document.body.clientHeight || document.body.clientHeight ) ) 
		{
			//IE 4 compatible
			myHeight = document.body.clientHeight;
			//alert(myHeight);
		}
	}
}