var calreq;
var calreq2;
function getmiles(){
    var zipcode=document.getElementById('zip').value;
    var url="miles_result.php?zip="+zipcode;
    if(window.XMLHttpRequest) {
            calreq = new XMLHttpRequest();
    } else if(window.ActiveXObject) {
            calreq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    calreq.open("GET", url, false);
    calreq.send(null);
    if(calreq.status == 200) {
      document.getElementById('milesorder').innerHTML = calreq.responseText;
      document.getElementById('miles_result_text').innerHTML = 'We\'ve found the following surgeries for you. To see more details and a map, select an address:<br /><br />';
    }
    else document.getElementById(milesorder).innerHTML = "Problem while loading data:\n" + calreq.statusText;
}
function view_map(id,startltd,startlng,endltd,endlng){
    var url="view_map2.php?id="+id+"&startltd="+startltd+"&startlng="+startlng+"&endltd="+endltd+"&endlng="+endlng;
    if(window.XMLHttpRequest) {
            calreq2 = new XMLHttpRequest();
    } else if(window.ActiveXObject) {
            calreq2 = new ActiveXObject("Microsoft.XMLHTTP");
    }
    calreq2.open("GET", url, false);
    calreq2.send(null);
    if(calreq.status == 200) document.getElementById('mapcont').innerHTML = calreq2.responseText;
    else document.getElementById(milesorder).innerHTML = "Problem while loading data:\n" + calreq2.statusText;
}