function validate_refer_to_friend(formObj) {

	if(formObj.fullname.value=='') {

		alert("Please enter your name");
		formObj.fullname.focus();
		return false;

	}else if(formObj.friends_name.value=='') {

		alert("Please enter your friends name");
		formObj.friends_name.focus();
		return false;
	
   }else if(!checkEmail(formObj.email.value)) {

		alert("Invalid your email address");
		formObj.email.focus();
		return false;
	
   }else if(!checkEmail(formObj.friends_email.value)) {

		alert("Invalid your friends email address");
		formObj.friends_email.focus();
		return false;

	}

	return true;

}

function validate_email_to_friend(formObj) {

  if(!checkEmail(formObj.email.value)) {

		alert("Invalid your email address");
		formObj.email.focus();
		return false;
	
   }else if(!checkEmail(formObj.friends_email.value)) {

		alert("Invalid your friends email address");
		formObj.friends_email.focus();
		return false;

	}

	return true;

}


function checkEmail(emailaddr) {

	var pattern=/.*?@.*?\..*?/i;

	if(!emailaddr.match(pattern)) {
		
		return false;
	}

	return true;
}

function popWin(url, width, height) {

  var prop='menubar=no,toolbar=no,scrollbars=no,width=' + width +',height=' + height;	
  pop_win=window.open(url, 'my_window', prop);

}

function valPoll(frm) {

	var checked = false; 
	var buttons = frm.elements.poll_answer; 
	for (var i=0; i<buttons.length; i++)  {  
		if (buttons[i].checked) {  

			checked = true; 
			break;  
		}  
   } 
   if(!checked) alert("Please select a option");  
   return checked; 	

}