function isNull(aStr)
{
	aStr = trim(aStr)
	var index;
	for (index=0; index < aStr.length; index++)
         if (aStr.charAt(index) != ' ')
	     return false;
                               
    return true;
}

function ltrim(s)
{
	return s.replace(/^\s*/, "")
}

function rtrim(s)
{
	return s.replace(/\s*$/, "");
}
function trim(s)
{		
	return rtrim(ltrim(s));
}

function validatelogin(theform)
{
    if(isNull(theform.Username.value))
    {
        alert("Please enter your Username");
        theform.Username.focus();
        return false;
    }
    if(isNull(theform.Password.value))
    {
        alert("Please enter your Password");
        theform.Password.focus();
        return false;
    }
    return true;
}

function testPassword(passwd)
{
		var intScore   = 0
		var strVerdict = "Weak"
		
		if (passwd.length<5)
		{
			intScore = (intScore+3)
		}
		else if (passwd.length>4 && passwd.length<8) 
		{
			intScore = (intScore+6)
		}
		else if (passwd.length>7 && passwd.length<16)
		{
			intScore = (intScore+12)
		}
		else if (passwd.length>15)
		{
			intScore = (intScore+18)
		}
		if (passwd.match(/[a-z]/))
		{
			intScore = (intScore+1)
		}
		if (passwd.match(/[A-Z]/))
		{
			intScore = (intScore+5)
		}
		if (passwd.match(/\d+/))
		{
			intScore = (intScore+5)
		}
		if (passwd.match(/(.*[0-9].*[0-9].*[0-9])/))
		{
			intScore = (intScore+5)
		}
		if (passwd.match(/.[!,@,#,$,%,^,&,*,?,_,~]/))
		{
			intScore = (intScore+5)
		}
		if (passwd.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/))
		{
			intScore = (intScore+5)
		}
		if (passwd.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/))
		{
			intScore = (intScore+2)
		}
		if (passwd.match(/([a-zA-Z])/) && passwd.match(/([0-9])/))
		{
			intScore = (intScore+2)
		}
		if (passwd.match(/([a-zA-Z0-9].*[!,@,#,$,%,^,&,*,?,_,~])|([!,@,#,$,%,^,&,*,?,_,~].*[a-zA-Z0-9])/))
		{
			intScore = (intScore+2)
		}
	
	
		if(intScore < 16)
		{
		   strVerdict = "<font color=\"red\">Very Weak</font>"
		}
		else if (intScore > 15 && intScore < 25)
		{
		   strVerdict = "<font color=\"red\">Weak</font>"
		}
		else if (intScore > 24 && intScore < 35)
		{
		   strVerdict = "<font color=\"orange\">Mediocre</font>"
		}
		else if (intScore > 34 && intScore < 45)
		{
		   strVerdict = "<font color=\"green\">Strong</font>"
		}
		else
		{
		   strVerdict = "<font color=\"green\">Stronger</font>"
		}
	  document.getElementById('passwords').innerHTML = (strVerdict);
	
}

function testPasswordMatch(passwd, passwdcheck)
{
	if (passwd != passwdcheck)
	{
		alert("Please be sure that the Passwords match!");
   		register.PasswordCheck.focus();
		document.getElementById('passwordcheck').innerHTML = "<img src=\"images/notsame.gif\">";
	}
	else
	{	
		document.getElementById('passwordcheck').innerHTML = "<img src=\"images/same.gif\">";
	}
}



function AllowRegistration()
{
	if (isNull(register.FName.value))
	{
		alert("Please insert your First Name!");
   		register.FName.focus();
		return false;
	}
	if (isNull(register.LName.value))
	{
		alert("Please insert your Last Name!");
   		register.LName.focus();
		return false;
	}
	if (isNull(register.Email.value))
	{
		alert("Please insert your Email!");
   		register.Email.focus();
		return false;
	}
	if(document.getElementById('emailav').innerHTML == "<font color=\"red\">Not Available</font>")
	{
		alert("Sorry, there is an account registered with that Email, please choose another!");
   		register.Email.focus();
		return false;
	}
	if (isNull(register.Username.value))
	{
		alert("Please insert a Username!");
   		register.Username.focus();
		return false;
	}
	if(document.getElementById('usernameav').innerHTML == "<font color=\"red\">Not Available</font>")
	{
		alert("Sorry, there is an account registered with that Username, please choose another!");
   		register.Email.focus();
		return false;
	}
	if (isNull(register.Password.value))
	{
		alert("Please insert a Password!");
   		register.Password.focus();
		return false;
	}
	if (isNull(register.PasswordCheck.value))
	{
		alert("Please confirm your Password!");
   		register.PasswordCheck.focus();
		return false;
	}
	if (register.Password.value != register.PasswordCheck.value)
	{
		alert("Please be sure that the Passwords match!");
   		register.PasswordCheck.focus();
		document.getElementById('passwordcheck').innerHTML = "<img src=\"images/notsame.gif\">";
		return false;
	}
}



// The following code is from Dynamic Drive

var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
var bustcacheparameter=""

function ajaxpage(url, containerid){
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
} 
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) //if bust caching of external page
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}

function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}