function empty_field(txtbox,msg)
	{
str=txtbox.value
	if(str.charAt(0)==" " || str.length==0)
		{
		alert (msg)
		txtbox.focus()	
		return false
		}
	return true
	}
		
function check_email(txtbox,msg)
	{
	var e=txtbox.value
	var a=e.indexOf("@")
	var b=e.indexOf(".")
	
		if(a<0 || b<0)
		{
		alert (msg)
		txtbox.select()
		return false
		}
	return true
	}
	
function removeTrack(arg)
	{
alert(arg)
	return true
	}

/***********************************************
* New Email Verification script
* -----------------------------
* Email Validation script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}

	
	
	
function ischaracter(c) 
    {
    var test = "" + c;
    if (test == "A" || test == "B" || test == "C" || test == "D" || test == "E" || test == "F" || test == "G" || test == "H" || 
    test == "I" || test == "J" || test == "K" || test == "L" || test == "M" || test == "N" || test == "O" || test == "P" || test == "Q" || 
    test == "R" || test == "S" || test == "T" || test == "U" || test == "V" || test == "W" || test == "X" || test == "Y" || test == "Z" || 
    test == "a" || test == "b" || test == "c" || test == "d" || test == "e" || test == "f" || test == "g" || test == "h" || test == "i" || 
    test == "j" || test == "k" || test == "l" || test == "m" || test == "n" || test == "o" || test == "p" || test == "q" || test == "r" || 
    test == "s" || test == "t" || test == "u" || test == "v" || test == "w" || test == "x" || test == "y" || test == "z" || test == " " ||
	test == "." || test == "-")
       {
        return true;
        }
    return false;
    }
        
function isAllcharacters(s)
    {

    var test = "" + s;
    for (var k = 0; k < test.length; k++)
        {
        var c = test.substring(k, k+1);
        if (ischaracter(c) == false)
            {
            return false;
            }
        }
    return true;
    }
	
function valid_data(txtbox,msg)
	{
 str=txtbox.value 

	var p=isAllcharacters(str);
	if (p == false)
		{
		alert(msg);
		txtbox.select()
		return false
		}
return true
	}
	
function check_num(txtbox,msg)
	{
	n=txtbox.value
	if(isNaN(n))
		{
		alert(msg)
		txtbox.select()
		return false
		}
  return true
	}
	
function valid_pass(txtbox,msg)
	{
str=txtbox.value
	if(str.length<6)
	{
	alert (msg)
	txtbox.select()
	return false
	}
  return true
	}
	
function check_pass(pass1,pass2,msg)
	{
	if(pass1!= pass2)
	{
	alert(msg)
	return false
	}
 return true
	}
		
function IsValidName(sValue)
{
	var re = new RegExp("^[a-zA-Z\\s\\-\\.]*[a-zA-Z]+[a-zA-Z\\s\\-\\.]*$");
	if(!re.test(sValue))
		return false;
	return true;
}

function IsValidID(sValue)
{

	var re = new RegExp("^[A-Za-z]{1,}[A-Za-z0-9]{1,}$");
	if(!re.test(sValue))
		return false;
	return true;
}			
		
function IsValidURL(sValue)
{
	var re = new RegExp("^[Ww]{3}\\.[A-Za-z0-9]{1,}");
	if(!re.test(sValue))
		return false;
	return true;
}	

function IsValidSiteTitle(sValue)
{
	var re = new RegExp("^[A-Za-z0-9]{1,}");
	if(!re.test(sValue))
		return false;
	return true;
}