function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}

function validateForm(e){
  if(!e.txtName.value){
    alert("Please enter your name");
    return false;
  }
  else if(!e.txtEmail.value || !validateEmail(e.txtEmail.value)){
    alert("Please enter a valid email address");
    return false;
  }
  else if(!e.txtMessage.value){
    alert("Please enter your message");
    return false;
  }
  else{
    return true;
  }
}

function toggleDiv(e){
  if(document.getElementById(e).style.display == "none"){
    document.getElementById(e).style.display = "block";
  }
  else{
    document.getElementById(e).style.display = "none";
  }
}