function addSubmitOnEnter(input) {
	input.onkeydown = function(e) {
		e = e || window.event;
		if (e && e.keyCode == 13) {
			if (input.form)
				input.form.submit();
			return false;
		}
	};
}

function submitCurrentForm(sender) {
	//Disable subsequent clicks
	sender.onclick = function() { return false; };
	var e = sender.parentNode;
	
	while (e && e.nodeName != "FORM") {
		e = e.parentNode;
	}
	
	if (e)
		e.submit();
}