// JavaScript Document

var whitespace = " \t\n\r";

function charInString (c, s)
{   for (i = 0; i < s.length; i++)
    {   if (s.charAt(i) == c) return true;
    }
    return false;
}

function isWhitespace (s)

{   var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}

function isEmpty(s)
{   
	return ((s == null) || (s.length == 0))
}

function stripInitialWhitespace (obj)
{   
	var s=obj.value;
	var i = 0;
	
    while ((i < s.length) && charInString (s.charAt(i), whitespace))
       i++;
    
    obj.value=s.substring (i, s.length);
}

function leftTrim(obj)
{   
	var s=obj.value;
	var i = 0;
	
    while ((i < s.length) && charInString (s.charAt(i), whitespace))
       i++;
    
    obj.value=s.substring (i, s.length);
}
function isEmailAddr(email)
	{
  		var result = false
  		var theStr = new String(email)
  		var index = theStr.indexOf("@");
  		if (index > 0)
  		{
    		var pindex = theStr.indexOf(".",index);
    		if ((pindex > index+1) && (theStr.length > pindex+1))
			result = true;
  		}
  		return result;
	}