function checkUser() {
	errStr = "";
	
	if ($('user').value.length < 3) {
		errStr += "Username prea scurt (minim 3 car.)<br/>";	
	}		
	if ($('pass').value.length < 6) {
		errStr += "Parola prea scurta (minim 6 car.)<br/>";	
	}	
	if ($('pass').value != $('passcheck').value) {
		errStr += "Parolele introduse nu sunt identice<br/>";
	}
	
	if (errStr != "") {
		$('errMsg').style.display = "";
		$('errMsg').innerHTML = errStr;
		$('user').focus();
		return false;
	}
}

function checkDb(type, str) {
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
	  alert ("Browser does not support HTTP Request");
	  return;
	} 
	var url = "functions/check_candidat.php";
	url += "?type=" + type;
	url += "&q=" + str;
	url += "&amp;sid=" + Math.random();
	
	xmlHttp.onreadystatechange=function() {
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
			response = xmlHttp.responseText;
			$('errMsg').style.display = "none";
			if (response != "") {
				$('errMsg').style.display = "";
				$('errMsg').innerHTML = "User-ul &quot;" + response + "&quot; deja existent";
			}
		}
	}
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);	
}

function GetXmlHttpObject() {
	var xmlHttp=null;
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
  }
	catch (e) {
		// Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)	{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}