function findDentists()
{
	var czip = document.getElementById("userzip").value;
	var csubzip = czip.substring(0,2);
	var params = "http://denturecomfort.kylejasterstudio.com/gmaps/markers.xml";
	var xmlhttp = new XMLHttpRequest();
	xmlhttp.open("GET", params, false);
	xmlhttp.send(null);
	var oDom = (new DOMParser()).parseFromString(xmlhttp.responseText, "text/xml");
	var cts = oDom.getElementsByTagName('marker');
	var index = 0;
	var node;
	var df = document.getElementById('dentistlist');
	var attrs = new Object();
	df.innerHTML = "";
	while(node = cts.item(index++)){
		idv = document.createElement('div');
		df.appendChild(idv);
		var dsubzip = node.getAttribute("zip").substring(0,2);
		if(dsubzip === csubzip){
			attrs['label'] = node.getAttribute("label");
			attrs['address'] = node.getAttribute("address");
			attrs['zip'] = node.getAttribute("zip");
			for(var idx in attrs){
				idv.innerHTML += attrs[idx] + "<br />";
			}
			idv.innerHTML += '<a target="new_page" href="http://maps.google.com/maps?saddr=' + czip + '&daddr=' + escape(attrs['address']+" "+attrs['zip'])+'">Get driving directions </a>';
			idv.innerHTML += "<br /><br />";
		}
	}
}