var isIE;

if (navigator.appName == "Microsoft Internet Explorer"){isIE = true;}

function entryPress()
{ 
	//Capture Netscape events 
	if(!isIE) {
		document.captureEvents(Event.KEYDOWN);
	}
	document.onkeydown = doUserLogin
}

function doUserLogin(evt){

	var theButtonPressed;

	if (isIE){
		theButtonPressed = window.event.keyCode;
	}else{
		theButtonPressed = evt.which;
	}

	if (theButtonPressed == 13) {
		if(isIE){
			with(event){
				cancelBubble = true;
				returnValue = false;
			}
		}
	document.getElementById("login").click();
	} 
}