var Doc = new Object();
Doc.getSize = function()
{
	var size_obj = new Object();
	size_obj.width = size_obj.height = 0;
	
	if( typeof( window.innerWidth ) == 'number' ) 
	{
		//Non-IE
		size_obj.width = window.innerWidth;
		size_obj.height = window.innerHeight;
	} 
	else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) 
	{
		//IE 6+ in 'standards compliant mode'
		size_obj.width = document.documentElement.clientWidth;
		size_obj.height = document.documentElement.clientHeight;
	} 
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) 
	{
		//IE 4 compatible
		size_obj.width = document.body.clientWidth;
		size_obj.height = document.body.clientHeight;
	}
	
	return size_obj;
}