// JavaScript Document

	function checkemail() {
		var elem = document.getElementById("username");
		var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
		if(elem.value.match(emailExp)){
			return true;
		}else{
			alert("Email not valid");
			elem.focus();
			return false;
		}
	}
	
	function submitform() {
		if(checkemail()) {
			var pass1 = document.getElementById("password1");
			var pass2 = document.getElementById("password2");
			if(pass1.value != pass2.value) {
				alert("passwords don't match");
				return false;
			} else {
				if(pass1.value == '') {
					alert("You need to enter a password");
					return false;
				} else {
					return true;
				}
			}			
		} else {
			return false;
		}
	}
	
	function switcher(elementname) {
		//alert("hello!");
		element = document.getElementById(elementname);
		thelink = document.getElementById(elementname+"_a");
		//alert(thelink.innerHTML);
		if(element.style.display == 'block') {
			element.style.display = 'none';
			thelink.style.backgroundImage = 'url(img/expand.gif)';
		} else {
			element.style.display = 'block';
			thelink.style.backgroundImage = 'url(img/contract.gif)';
		}
	}
	
	
		function hidedark() {
			document.getElementById("darkBackgroundLayer").style.display = "none";
			document.getElementById("loginbox").style.display = "none";
		}
		function showdark(goto) {
			document.getElementById("darkBackgroundLayer").style.display = "block";
			document.getElementById("loginbox").style.display = "block";
			document.getElementById("hiddengoto").value = goto;
			document.getElementById("hiddengoto2").value = goto;
		}