<!--
/** XHConn - Simple XMLHTTP Interface - bfults@gmail.com - 2005-04-08        **
 ** Code licensed under Creative Commons Attribution-ShareAlike License      **
 ** http://creativecommons.org/licenses/by-sa/2.0/                           **/
if(!Array.indexOf){
    Array.prototype.indexOf = function(obj){
        for(var i=0; i<this.length; i++){
            if(this[i]==obj){
                return i;
            }
        }
		return -1;
    }
}
function XHConn()
{
  var xmlhttp, bComplete = false;
  try { xmlhttp = new XMLHttpRequest(); }
  catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
  catch (e) { try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
  catch (e) { xmlhttp = false; }}}
  if (!xmlhttp) return null;
  this.connect = function(sURL, sMethod, sVars, fnDone)
  {
  	
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();
    try {
      if (sMethod == "GET")
      {
        xmlhttp.open(sMethod, sURL+"?"+sVars, true);
        sVars = "";
      }
      else
      {
        xmlhttp.open(sMethod, sURL, true);
        xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
        xmlhttp.setRequestHeader("Content-Type",
          "application/x-www-form-urlencoded");
      }
      xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && !bComplete)
        {
          bComplete = true;
		  fnDone(xmlhttp);
        }};
      xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };
  return this;
}

function trim(str) { return str.replace(/^\s*|\s*$/g,""); }

function perValidate(objValue,regEx,strError)
{	
	var charpos = objValue.value.search(regEx); 
	if(objValue.value.length > 0 &&  charpos >= 0) 
    {
		if(!strError || strError.length ==0) 
		{ 
		  strError = objValue.name+": Only digits allowed "; 
		}//if               
		alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
		return false; 
	}
}

function perReq (objValue, strError)
{
	
	if(objValue.value.length == 0) {
		
		if(strError.length != 0) {
			alert(strError);
		} else {
			alert(objValue.name + " is a required field");
		}
		return false;
	}
}

function goBack()
{
	//window.location = document.referrer;
	var ajax = new XHConn();
	if(!ajax) {
		alert("XHConn failed to initialize. Script will now abort");
		return false;
	}
	
	var fnWhenDone = function (content)
	{
		var data = content.responseText;
		if (data.length > 0)
		{
			window.location = data;
		} else
		{
			alert("You cannot go back any further. Your history (last twenty pages) has been used up.");
			return false;
		}
	}
	
	ajax.connect("include/ajax/back.php", "POST", "", fnWhenDone);
}


function fSignOut()
{
	var ajax = new XHConn();
	if(!ajax) {
		alert("XHConn failed to initialize. Script will now abort");
		return false;
	}
	
	var fnWhenDone = function (content)
	{
		var data = content.responseText;
  		if (data != "true")
		{
			alert("There was an error while trying to sign out.");
		} else {
			window.location = "/login.php"
		}
	}
	
	ajax.connect("/include/ajax/signout.php", "POST", "", fnWhenDone);
}
//-->