sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);


function validateForm()
{

var x=document.forms["myForm"]["realname"].value
if (x==null || x=="")
  {
  alert("Please fill in your name");
  return false;
  }
	
var x=document.forms["myForm"]["email"].value
var atpos=x.indexOf("@");
var dotpos=x.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length)
  {
  alert("Please provide a valid e-mail address");
  return false;
  }
  
  
  
 var x=document.forms["myForm"]["Message Subject"].value
if (x==null || x=="")
  {
  alert("Please fill in a message subject");
  return false;
  }
  
  
var x=document.forms["myForm"]["Message"].value
if (x==null || x=="")
  {
  alert("Please include a message with your enquiry");
  return false;
  }
  
}