function validate() {
    if (trim(document.frmWebToLead['Company'].value) == "")
	{
		alert("Please enter your Company.");
		document.frmWebToLead['Company'].focus();
		return (false);
	}

	if (trim(document.frmWebToLead['First Name'].value) == "")
	{
		alert("Please enter your First Name.");
		document.frmWebToLead['First Name'].focus();
		return (false);
	}
	
	if (trim(document.frmWebToLead['Last Name'].value) == "")
	{
		alert("Please enter your Last Name.");
		document.frmWebToLead['Last Name'].focus();
		return (false);
	}
	
	if (trim(document.frmWebToLead['Designation'].value) == "")
	{
		alert("Please enter your Title.");
		document.frmWebToLead['Designation'].focus();
		return (false);
	}
	
	if (trim(document.frmWebToLead['Email'].value) == "")
	{
		alert("Please enter your Email.");
		document.frmWebToLead['Email'].focus();
		return (false);
	} else if (!validate_email(document.frmWebToLead['Email'].value)) {
		alert("Please enter a valid Email.");
		document.frmWebToLead['Email'].focus();
		return (false);
	}
	
	if (trim(document.frmWebToLead['Phone'].value) == "")
	{
		alert("Please enter your Phone number.");
		document.frmWebToLead['Phone'].focus();
		return (false);
	} else if (!validate_phone(document.frmWebToLead['Phone'].value)) {
		alert("Please enter a valid Phone number.");
		document.frmWebToLead['Phone'].focus();
		return (false);
	}
		
	if (trim(document.frmWebToLead['City'].value) == "")
	{
		alert("Please enter your City.");
		document.frmWebToLead['City'].focus();
		return (false);
	}
	
	if (trim(document.frmWebToLead['Country'].value) == "")
	{
		alert("Please enter your Country.");
		document.frmWebToLead['Country'].focus();
		return (false);
	}
		
	return true;
}
function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function validate_email(str) {

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	  // alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    return false
	 }
	
	 if (str.indexOf(" ")!=-1){
	    return false
	 }

		 return true					
}

/**
 * DHTML phone number validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- .";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function validate_phone(str){
	var bracket = 3;
	if(str.indexOf("+")>1) return false;
	if(str.indexOf("-")!=-1)bracket=bracket+1;
	if(str.indexOf("(")!=-1 && str.indexOf("(")>bracket)return false;
	var brchr=str.indexOf("(");
	if(str.indexOf("(")!=-1 && str.charAt(brchr+2)!=")")return false;
	if(str.indexOf("(")==-1 && str.indexOf(")")!=-1)return false;
	s=stripCharsInBag(str,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}