var EnterBtnArray = new Array();
var IdWithFocus = "";

function SubmitOnEnter(event) {
	if (event.keyCode == 13) {
		event.returnValue=false;
		event.cancel = true;
		for (i=0; i<EnterBtnArray.length; i++) {
			var currentElementId = EnterBtnArray[i][0];
			if(IdWithFocus == currentElementId){
				var buttonID = EnterBtnArray[i][1];
				var btn = document.getElementById(buttonID);
				btn.click();
			}
		}
	}
}

function RegisterSubmitButton(currentElementId, buttonID) {
	EnterBtnArray[EnterBtnArray.length] = new Array(currentElementId, buttonID);
}

function SetFocus(currentElementId) {
	IdWithFocus = currentElementId;
}
function RelinquishFocus() {
	IdWithFocus = "";
}

/*

var btnID;
function SetSubmitButton(buttonID) {
	btnID = buttonID;
}
function SubmitOnEnter() {
	if (btnID == null)
		return false;
	else
	{
		if (window.event.keyCode == 13) {
			event.returnValue=false;
			event.cancel = true;
			return false;
		}
	}
}
*/