//////////////////////////////////////////////////////////////////////////////////////////
//this function check if all required fields had been filled out
function validate() {
	var f = document.Form_Gen;
	
	if (Trim(f.first_name.value) == "") 
	{
		alert("Please enter your First Name");
		f.first_name.focus();
		return false;
	}
	
	if (Trim(f.last_name.value) == "") 
	{
		alert("Please enter your Last Name");
		f.last_name.focus();
		return false;
	}

	if (Trim(f.company.value) == "") 
	{
		alert("Please enter your Company");
		f.company.focus();
		return false;
	}

	if (Trim(f.phone.value) == "") 
	{
		alert("Please enter Phone number");
		f.phone.focus();
		return false;
	}

	if (Trim(f.email.value) == "") 
	{
		alert("Please enter your Email address");
		f.email.focus();
		return false;
	}


	if (f.email.value != "")
		if (isValidEmail(f.email) == false)
			return false;
	
}

// Check Email Address ==========================================

function isValidEmail(objFormField)
{
var checkEmail = "@.";
var checkStr;
var EmailValid = false;
var EmailAt = false;
var EmailPeriod = false;

checkStr = objFormField.value;
for (i = 0;  i < checkStr.length;  i++)
{
	ch = checkStr.charAt(i);
	for (j = 0;  j < checkEmail.length;  j++)
	{
		if (ch == checkEmail.charAt(j) && ch == "@")
			EmailAt = true;
		if (ch == checkEmail.charAt(j) && ch == ".")
			EmailPeriod = true;
		if (EmailAt && EmailPeriod)
			break;
	  	if (j == checkEmail.length)
			break;
	}
	// if both the @ and . were in the string
	if (EmailAt && EmailPeriod)
		return true;
}
if (!EmailValid)
{
	alert("The \"email\" field must contain an \"@\" and a \".\".");
	objFormField.focus();
	return (false);
}
}


/*
==================================================================
LTrim(string) : Returns a copy of a string without leading spaces.
==================================================================
*/
function LTrim(str)
/*
   PURPOSE: Remove leading blanks from our string.
   IN: str - the string we want to LTrim
*/
{
   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;
}

/*
==================================================================
RTrim(string) : Returns a copy of a string without trailing spaces.
==================================================================
*/
function RTrim(str)
/*
   PURPOSE: Remove trailing blanks from our string.
   IN: str - the string we want to RTrim

*/
{
   // 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;
}

/*
=============================================================
Trim(string) : Returns a copy of a string without leading or trailing spaces
=============================================================
*/
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));
}
//-->