function changeBanner(whichButton)
	{
		var objFrame=document.getElementById("menubar");
		objFrame.src="http://mrvga.wehaveablog.com/img/banner_"+whichButton+".gif";
	}
	
function changeBannerBack()
	{
		var objFrame=document.getElementById("menubar");
		objFrame.src="http://mrvga.wehaveablog.com/img/banner_0.gif";
	}