function validateContactForm()

	{
	var name = document.getElementById('cname').value
	var email = document.getElementById('email').value
	
	var errors = ''
	var submitok = "True"
	var rateok = "True"
	var questionok = "True"
	
	if (name == "") 
		{
		errors = errors + "- Please enter your name.\n";
		submitok = "False";
		}
		
	if (email == "") 
		{
		errors = errors + "- Please enter your email address.\n";
		submitok = "False";
		}
			
	if (submitok == "False")
		{
		alert("The following error(s) have occurred: \n\n" + errors);
		return false;
		}
	}
	
	
	function doReferredBy(fld) {
		var val = fld.options[fld.options.selectedIndex].value;
		if(val == "patient (fill in name below)" || val == "doctor (fill in name below)") 
		{
			try{
			document.getElementById('referredbyname').style.display = "inline";
			}
			catch(e){}
			{}
			try{
			document.getElementById('referredbyname').style.visibility = "visible";
			}
			catch(e){}
		} 
		else 
		{
			try{
			document.getElementById('referredbyname').style.display = "none";
			}
			catch(e){}
			try{
			document.getElementById('referredbyname').style.display = "hidden";
			}
			catch(e){}
		}
	}
	
	function checkReferredBy() 
	{
		var val = document.getElementById("how_did_you_hear_of_us").options[document.getElementById("how_did_you_hear_of_us").options.selectedIndex].value;
		if(val != "patient (fill in name below)" && val != "doctor (fill in name below)") {
			document.getElementById('referred_by_name').value = "";
		}
	}	
		
	function setReferredBy() 
	{
		var val = document.getElementById("how_did_you_hear_of_us").options[document.getElementById("how_did_you_hear_of_us").options.selectedIndex].value;
		if(val != "patient (fill in name below)" && val != "doctor (fill in name below)") 
		{
			document.getElementById('referred_by_name').value = "";
			try{
			document.getElementById('referredbyname').style.display = "none";
			}
			catch(e){}
			
			try{
			document.getElementById('referredbyname').style.display = "hidden";
			}
			catch(e){}
			
		}
		
	}