function TNCom_getDocumentSize(val)
{	
	var xScroll,yScroll,value;	
	if(window.innerHeight&&window.scrollMaxY)
	{
		xScroll=window.innerWidth+window.scrollMaxX;
		yScroll=window.innerHeight+window.scrollMaxY;
	}
	else if(document.body.scrollHeight>document.body.offsetHeight)
	{
		xScroll=document.body.scrollWidth;
		yScroll=document.body.scrollHeight;
	}
	else{
		xScroll=document.body.offsetWidth;
		yScroll=document.body.offsetHeight;
	}
	
	var windowWidth,windowHeight;
	
	if(self.innerHeight)
	{
		if(document.documentElement.clientWidth){
			windowWidth=document.documentElement.clientWidth;
		}
		else{
			windowWidth=self.innerWidth;
		}
		windowHeight=self.innerHeight;
	}
	else if(document.documentElement&&document.documentElement.clientHeight)
	{
		windowWidth=document.documentElement.clientWidth;
		windowHeight=document.documentElement.clientHeight;
	}
	else if(document.body)
	{
		windowWidth=document.body.clientWidth;		
		windowHeight=document.body.clientHeight;
	}
	
	if(yScroll<windowHeight){
		pageHeight=windowHeight;
	}
	else{
		pageHeight=yScroll
	}
	
	if(xScroll<windowWidth){
		pageWidth=xScroll
	}
	else{
		pageWidth=windowWidth
	}
	
	arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight)	
	return arrayPageSize[val]
}// end function