var buttonImages = new Array();
buttonImages["default"] = new Image(194,60);
buttonImages["default"].src = "images/dark_default.png";
buttonImages["down"] = new Image(194,60);
buttonImages["down"].src = "images/dark_down.png";
buttonImages["focus"] = new Image(194,60);
buttonImages["focus"].src = "images/dark_focus.png";

function buttonDown(){
	document.getElementById("submitButton").src = buttonImages["down"].src;
}
function buttonDefault(){
	document.getElementById("submitButton").src = buttonImages["default"].src;
}
function buttonFocus(){
	document.getElementById("submitButton").src = buttonImages["focus"].src;
}

function handleEnter(evt){
	if(evt){
		var curKeyCode = evt.keyCode;
	}
	else var curKeyCode = event.keyCode;
	if(curKeyCode != 13) return;
	validate();
}