function RTrim(str)

        /***

                PURPOSE: Remove trailing blanks from our string.

                IN: str - the string we want to RTrim



                RETVAL: An RTrimmed string!

        ***/

        {

                // We don't want to trip JUST spaces, but also tabs,

                // line feeds, etc.  Add anything else you want to

                // "trim" here in Whitespace

                var whitespace = new String(" \t\n\r");



                var s = new String(str);



                if (whitespace.indexOf(s.charAt(s.length-1)) != -1) {

                    // We have a string with trailing blank(s)...



                    var i = s.length - 1;       // Get length of string



                    // Iterate from the far right of string until we

                    // don't have any more whitespace...

                    while (i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)

                        i--;





                    // Get the substring from the front of the string to

                    // where the last non-whitespace character is...

                    s = s.substring(0, i+1);

                }



                return s;

        }





        function LTrim(str)

        /***

                PURPOSE: Remove leading blanks from our string.

                IN: str - the string we want to LTrim



                RETVAL: An LTrimmed string!

        ***/

        {

                var whitespace = new String(" \t\n\r");



                var s = new String(str);



                if (whitespace.indexOf(s.charAt(0)) != -1) {

                    // We have a string with leading blank(s)...



                    var j=0, i = s.length;



                    // Iterate from the far left of string until we

                    // don't have any more whitespace...

                    while (j < i && whitespace.indexOf(s.charAt(j)) != -1)

                        j++;





                    // Get the substring from the first non-whitespace

                    // character to the end of the string...

                    s = s.substring(j, i);

                }



                return s;

        }







        function Trim(str)

        /***

                PURPOSE: Remove trailing and leading blanks from our string.

                IN: str - the string we want to Trim



                RETVAL: A Trimmed string!

        ***/

        {

                return RTrim(LTrim(str));

        }

		

		function IsEMail(strEmail)

		{

			var filter=/^[A-Za-z0-9-_\.]+@+[A-Za-z0-9-_\.]+\.+[A-Za-z]{2,4}$/;

			return (filter.test(strEmail));

		}