function extravalidation(){
 with (document.Form1){
 try{
	
	  var c_type = 1
		  	for(i=0; i< Form1.CorrespondenceType.length;i++){
		  		if(Form1.CorrespondenceType[i].checked == true){
				c_type = Form1.CorrespondenceType[i].value
				}
		 	}
		 if (c_type == 2){
	  		if(Form1.FaxB.value == "" && Form1.FaxH.value == "") { 
	 			 alert("Please enter a fax number.");
	    		Form1.FaxB.focus();
	   			 return (true);
			}
	  	}
	 
	 
	 	if (c_type == 3){
	  		if(Form1.EMail.value == "") { 
	  			alert("Please enter your email address.");
	    		Form1.EMail.focus();
	    		return (true);
			}
	  	}
  
 }
 catch(e)
 {
 
 } 
  if(RegistrationType.value == ""){
 	alert("Please select a Registration Type")
	return (true);
 }
  var afound = true
  if(AddOn2[0].checked == false && AddOn2[1].checked == false){
 	afound = false
 }
  if(AddOn3[0].checked == false && AddOn3[1].checked == false){
 	afound = false
 }
  if(AddOn4[0].checked == false && AddOn4[1].checked == false){
 	afound = false
 }
 
  
 
 if(afound == false){
 alert("Please indicate whether or not your will be attending the Social Functions")
 return (true);
 }
 
 
 
if(PP20.checked == false){
 alert("You must agree to the terms and conditions in order to register for this event.");
	    		
	    		return (true);
 
 
}
 
 }
 		return false
 }