function checkContactForm(){

  	var alertString = "";
 if(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("name",this)].value == ""){
	alertString += "Please enter your name.";
  }

 if(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("email",this)].value == ""){
	alertString += "\nPlease enter your email address.";
 }else{
   //alert(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("email",this)].value + " isValidEmail: " + isValidEmail(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("email",this)].value));
   if (!isValidEmail(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("email",this)].value)){
	 alertString += "\nPlease enter a valid email address.";
   }
 }

 if(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("subject",this)].value == ""){
	alertString += "\nPlease enter a subject.";
  }

 if(document.forms[getNetuiTagName("contactForm",this)][getNetuiTagName("message",this)].value == ""){
	alertString += "\nPlease enter a message.";
  }
  if (alertString.length>0){
	alert(alertString);
	return false;
  }
  return true;
}



function isValidEmail(str) {
	var atPosition  = str.indexOf('@');
	var dotPosition = str.indexOf('.',atPosition);
	return ( (atPosition>0) && (dotPosition>0) );
}