window.onload=scrollBarDetector;
window.onresize=scrollBarDetector;

function scrollBarDetector()
{		
	if(document.body.clientHeight<document.body.scrollHeight)
	{
	//scrollbar is visible
		document.body.style.overflow='';
		
		if (document.body) {
	        document.body.style.backgroundImage = "url(images/stripes-crossed-scroll2.gif)";
        }
	    else if (document.all && !window.opera) 
		{
        	document.body.background = "url(images/stripes-crossed-scroll2.gif)";
        }
	}
	else
	{
	//scrollbar is not visible
		document.body.style.overflow='hidden'
		if (document.body) {
	        document.body.style.backgroundImage = "url(images/stripes-crossed2.gif)";
        }
	    else if (document.all && !window.opera) 
		{
        	  document.body.background = "url(images/stripes-crossed2.gif)";
        }
	}		
}