var xol = null;
    
    if (onload != null)
    {
        xol = onload;
    }
    
    function fixScrollbars ()
    {
    	if (document.body.offsetHeight > parent.document.getElementById ("mainFrame").offsetHeight)
	    {
		    document.body.scroll = "yes";
	    }
    }

    if (parent != window)
    {    
	    onload = function ()
	    {
	        if (xol != null)
	        {
	            xol ();
	        }
	        fixScrollbars ();
	    }
	}