self.onError=null;
        
currentX = 50;
currentY = 210;  
whichIt = null;           
lastScrollY = 0;

NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;

function heartBeat() {

    if(IE) { 
		if (window.navigator.userAgent.indexOf("5") > 0){
		diffY = document.body.scrollTop+ 0;}
		else {			
		diffY = document.body.scrollTop+ 0;}
	}

    if(NS) { diffY = self.pageYOffset; }
   
	if(diffY != lastScrollY) {
		percent = diffY - lastScrollY;
		if(diffY > 200){
			if(IE) document.all.navbar.style.pixelTop += percent;
		    if(NS) document.navbar.top += percent; 
		}
		else{
			if(IE) document.all.navbar.style.pixelTop = 210;
		    if(NS) document.navbar.top = 210; 
		}
	lastScrollY = lastScrollY + percent;
	} 
}

if(NS || IE) action = window.setInterval("heartBeat()",1);