function loginCheck() {
	var form = document.forms['login'];
	if(Validate.empty(form.username)) return;
	if(Validate.empty(form.password)) return;
	new Ajax({
		url:BASE_URL + "index.php/login_check",
		complete:function(html) {
			if(html == "ok") {
				window.location.href = BASE_URL + "index.php/admin";
			} else {
				Validate.alert(form.username,"Invalid Username and/or Password");
			}
		}
	}).send("username=" + form.username.value + "&password=" + form.password.value);
}
DOM.ready(function() {
	var form = $(document.forms["login"]);
	if(form) {
		form.getElements("input").each(function(el) {
			if(el.name == "username" || el.name == "password") {
				el.addEvent("keyup", function(e) {
					if(new Event(e).code == 13) loginCheck();
				});
			}
		});
	}
	var dd = $$("dd"), dt = $$("dt");
	dd.each(function(el,i) {
		var c = dt[i].getCoordinates();
		el.setStyle('display','block').setStyles({
			"top":c.bottom + 2,
			"left":c.left + (c.width / 2) - (el.getSize().width / 2),
			'display':'none'
		});
	});
	var say = "Search on Centeva";
	$('searcher').addEvents({
		focus:function() {
			if(this.value == say) this.value = '';
		},
		blur:function() {
			if(this.value == '') this.value = say;
		},
		keyup:function(e) {
			if(new Event(e).code == 13) $('search_form').submit();
		}
	}).value = say;
});