//Check email
function echeck(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){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid E-mail ID")
		    return false
		 }

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

 		 return true					
	}
//end check email

//check phone #
// 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 checkInternationalPhone(strPhone){
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function Form_Validator()
{
	var NameID=document.Form.Name
	var EmailID=document.Form.Email
	var PhoneID=document.Form.Company
	var PhoneID=document.Form.Phone
	var AddressID=document.Form.Street

  if ((NameID.value == "") || (NameID.value.length < 2))
  {
    alert("Please enter Name for the \"Name\" field.");
    NameID.focus();
    return false
  }
	
	if ((EmailID.value==null)||(EmailID.value=="")){
		alert("Please Enter your Email")
		EmailID.focus()
		return false
	}
	if (echeck(EmailID.value)==false){
		EmailID.value=""
		EmailID.focus()
		return false
	}
    if ((AddressID.value == "") || (AddressID.value.length < 2))
  {
    alert("Please enter an Address in the \"Address\" field.");
    AddressID.focus();
    return false
  }
	
    	if ((PhoneID.value==null)||(PhoneID.value=="")){
		alert("Please Enter your Phone Number")
		PhoneID.focus()
		return false
	}
	if (checkInternationalPhone(PhoneID.value)==false){
		alert("Please Enter a Valid Phone Number")
		PhoneID.value=""
		PhoneID.focus()
		return false
	}
	




	return true
}