function contact_you(){
		var contact = document.getElementById('contact_you').checked;
		if(contact == true){
			document.getElementById('contact_by').innerHTML = '<center><label for="by_email">By email? </label><input type="checkbox" name="by_email" id="by_email" value="1" />&nbsp;&nbsp;&nbsp;&nbsp;<label for="by_phone">By phone? </label><input type="checkbox" name="by_phone" id="by_phone" value="1" /></center>';
		}
		else{
			document.getElementById('contact_by').innerHTML = "";
		}
	}
	
	function GetXmlHttpObject()
	{
		var xmlHttp=null;
		try{xmlHttp=new XMLHttpRequest();}catch (e){try{xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}catch (e){xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}}return xmlHttp;
	}

	function submit_contact_form(){
		var name = document.getElementById('name').value;
		var company = document.getElementById('company').value;
		var email = document.getElementById('email').value;
		var telephone = document.getElementById('telephone').value;
		var interest = document.getElementById('interest').value;
		var comments= document.getElementById('comments').value;
		var contact = document.getElementById('contact_you').checked;
		if(contact == true){
		        var emailElement = document.getElementById('by_email');
			var telElement =document.getElementById('by_phone');
			if (emailElement != null){
				var by_email = emailElement.checked;
			}
			if (telElement != null){
				var by_telephone =telElement.checked;
			}
		}
		else{
			var by_email = '';
			var by_telephone = '';
		}
		xmlHttp=GetXmlHttpObject()
		if (xmlHttp==null)
		{
		  alert ("Your browser does not support this form - please call us at the number below instead.")
		  return
		} 
		var url='../code/contact_proxy.php?name='+name+'&company='+company+'&email='+email+'&telephone='+telephone+'&interest='+interest+'&contact='+contact+'&by_email='+by_email+'&by_telephone='+by_telephone+'&comments='+comments;
		xmlHttp.onreadystatechange=stateChanged 
		xmlHttp.open("GET",url,true)
		xmlHttp.send(null)
	}
	function stateChanged() 
	{ 
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	 	{ 
	 		document.getElementById("contactformtextliteral").innerHTML=xmlHttp.responseText 
	 	} 
	}