//----
// Refresh camera images
//----
   
	 function getlastmod(what){
				var http=new XMLHttpRequest()
				http.open('HEAD',what,false)
				http.send(null)
				if (http.status!=200) return undefined 
				return http.getResponseHeader('Last-modified')
		}
		
    function cam_refresh() {
      for (i=0; i<=0; i++) {
        tmp = new Date();
        tmp = "?" + tmp.getTime();
        document.images[cam1_tags[i]].src = cam1_images[i];
      	var thedate = getlastmod(cam1_images[i]);
				var dt = new Date(Date.parse(thedate));
				var a_p = "";
				var cur_hr = dt.getHours()
				if (cur_hr < 12) {a_p = "AM";} else { a_p = "PM"; }
				if (cur_hr == 0) {cur_hr = 12;}
				if (cur_hr > 12) {cur_hr = cur_hr - 12;}
				var cur_min = dt.getMinutes();
				cur_min = cur_min + "";
				if (cur_min.length == 1) {cur_min = "0"+cur_min;}
				var hr_min = cur_hr+":"+cur_min+a_p;
				var datestr = (dt.getMonth()+1)+"/"+dt.getDate()+"/"+dt.getFullYear()+" - "+hr_min; 
				//document.getElementById("thumbtime").innerHTML = datestr;
			}
      setTimeout("cam_refresh()", 6000000);
    }
		
		var cam1_images = new Array();
		var cam1_tags = new Array();
    	cam1_images[0] = "../camimages/dualcam/dualcam.jpg";
		cam1_tags[0] = "cam1_thumb";