function Trim(str){
 if (str.length > 1)
	return LTrim(RTrim(str));
else
	return str;
}
function LTrim(text){
var str = new String(text);
var s = ''
	for (var sp = 0; sp <= str.length-1; ) {
		   if (str.charAt(sp) == ' '){
				sp++
			}
			else{
				s = str.substr(sp,str.length);
				break;
			}
	}
 return s;
}
function RTrim(text){
var str = new String(text);
var s = '';
	for (var sp =  str.length - 1; sp > 0; ) {
	//alert(sp);
		   if (str.charAt(sp) == ' '){
				sp--;
			}
			else{
				s = str.substr(0,++sp);
				break;
			}
	}
 return s;
}

function ValidateForm(){
	var bReturn = true;
	var sFName = document.frmRegistration.FName.value;
	sFName= Trim(sFName);
	if (sFName.length <1 ){
		alert('Please enter your first name');
		document.frmRegistration.FName.focus();
		bReturn = false;
	
	}

	if (bReturn){
		var sLName = document.frmRegistration.LName.value;
		sLName = Trim(sLName);
		if (sLName < 1){
			alert('Please enter your Last name');
			document.frmRegistration.LName.focus();
			bReturn = false;
		}
	}

	if (bReturn){
		var sTelephone = document.frmRegistration.Telephone.value;
		sTelephone = Trim(sTelephone);
		if (sTelephone < 1){
			alert('Please enter your Telephone number');
			document.frmRegistration.Telephone.focus();
			bReturn = false;
		}
	}

	if (bReturn){
	
		bReturn = IsEmailValid('frmRegistration','Email')
	}
	
	return bReturn;
}

function IsEmailValid(FormName,ElemName)
{
var EmailOk  = true
var Temp     = document.forms[FormName].elements[ElemName]
var AtSym    = Temp.value.indexOf('@')
var Period   = Temp.value.lastIndexOf('.')
var Space    = Temp.value.indexOf(' ')
var Length   = Temp.value.length - 1   // Array is from 0 to length-1

if ((AtSym < 1) ||                     // '@' cannot be in first position
    (Period <= AtSym+1) ||             // Must be atleast one valid char btwn '@' and '.'
    (Period == Length ) ||             // Must be atleast one valid char after '.'
    (Space  != -1))                    // No empty spaces permitted
   {  
      EmailOk = false
      alert('Please enter a valid e-mail address!')
      Temp.focus()
   }
return EmailOk
}