function hdim() 
{
	if (window.innerHeight && window.scrollMaxY) 
	{	
		xScroll = window.innerWidth + window.scrollMaxX;
	} 
	else if (document.body.scrollHeight > document.body.offsetHeight)
	{ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
	} 
	else 
	{ // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
	}
	if (self.innerHeight) 
	{	// all except Explorer
		if(document.documentElement.clientWidth)
		{
			windowWidth = document.documentElement.clientWidth; 
		} 
		else 
		{
			windowWidth = self.innerWidth;
		}
	} 
	else if (document.documentElement && document.documentElement.clientHeight) 
	{ // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
	} 
	else if (document.body) 
	{ // other Explorers
		windowWidth = document.body.clientWidth;
	}	
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth)
	{	
		pageWidth = xScroll;		
	} 
	else 
	{
		pageWidth = windowWidth;
	}
	return pageWidth;
}