function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setContent() {
			var yOffset
				if (self.pageYOffset){// all except Explorer
					yOffset = self.pageYOffset;
				}
				else if (document.documentElement && document.documentElement.scrollTop)// Explorer 6 Strict
				{
					yOffset = document.documentElement.scrollTop;
				}
				else if (document.body){ // all other Explorers
					yOffset = document.body.scrollTop;
				}

			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var contentElement = document.getElementById('lightbox');
					var contentHeight = contentElement.offsetHeight;
					if (windowHeight - contentHeight > 0) {
						contentElement.style.position = 'absolute';
						contentElement.style.top = ((windowHeight / 2) - (contentHeight / 2)) + yOffset + 'px' ;
					}
					else {
						contentElement.style.position = 'static';
					}
				}
			}
		}

	function showPhoto(src)
		{
			var dest= document.getElementById('lightbox');
			var image= document.getElementById('image');
			image.src='<?=$base?>/images/imageLoading.gif';
			
			dest.style.display="block";
			image.src=src;
			setContent();
		}
	function hideme(target)
		{
			var dest= document.getElementById(target);
			dest.style.display="none";	
		}
	function hidemeShow(target)
		{
			var dest= document.getElementById(target);
			dest.style.display="block";	
		}		
//AJAX
   var http_request = false;
   function makeRequest(url, parameters) {
	   
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
	  //stop cache
	  var date = new Date();
	  var timestamp = date.getTime();
      http_request.onreadystatechange = alertContents;
      http_request.open('GET', url + parameters + "&" + timestamp, true);
      http_request.send(null);
	  //cache check
	  if (window.ActiveXObject) {
		  if(!http_request.getResponseHeader("Date")) {
			  var cached = http_request;
			  http_request =  new XMLHttpRequest();
			  var ifModifiedSince = cached.getResponseHeader("Last-Modified");
			  ifModifiedSince = (ifModifiedSince) ?
				  ifModifiedSince : new Date(0); // January 1, 1970
			  http_request.open('GET', url + parameters + "&" + timestamp, true);
			  http_request.setRequestHeader("If-Modified-Since", ifModifiedSince);
			  http_request.send("");
			  if(http_request.status == 304) {
					http_request = cached;
				  }
			}
	  }
   }

   function alertContents() {
	   
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            var result = http_request.responseText;	
			var endPos=result.indexOf("#",0);
			var target=result.substring(0,endPos);

			//alert(target);
            document.getElementById(target).innerHTML = result.substring(endPos+1);   
			
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
   
   function get(obj,url,newTarget) {
	   target=newTarget;
      var getstr = "?";
	  if(obj)
	  	{
			  for (var i=0; i<obj.elements.length; i++) {
		
						 if (obj.elements[i].tagName == "INPUT") {
								if (obj.elements[i].type == "text") {
									getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								}
								if (obj.elements[i].type == "file") {
									getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								}						
								if (obj.elements[i].type == "submit") {
									getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								}						
								if (obj.elements[i].type == "hidden") {
									getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								}						
						
								if (obj.elements[i].type == "checkbox") {
								   if (obj.elements[i].checked) {
										getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								   } else {
										getstr += obj.elements[i].name + "=&";
								   }
								}
								if (obj.elements[i].type == "radio") {
								   if (obj.elements[i].checked) {
										getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
								   }
								}
							}
				 
		
						 if (obj.elements[i].tagName == "SELECT") {
								var sel = obj.elements[i];
								getstr += sel.name + "=" + sel.options[sel.selectedIndex].value + "&";
							}
						 if (obj.elements[i].tagName == "TEXTAREA") {
								getstr += obj.elements[i].name + "=" + obj.elements[i].value + "&";
							}					
						obj.elements[i].disabled=true;
					}
		}
      makeRequest(url, getstr);
   }