function extravalidation(){
 
 try{
	with (document.Form1){
	  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)
 {
 
 } 
 		return false
 }