//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var popupStatus = 0;

//loading popup with jQuery magic!
 function loadPopup(){
 //loads popup only if it is disabled
 if(popupStatus==0){
   
   $("#overlay").load("?cl=info&tpl=popup.tpl");

 $("#backgroundPopup").css({
 "opacity": "0.7"
 });
 $("#backgroundPopup").fadeIn("slow");
 $("#overlay").fadeIn("slow");
 popupStatus = 1;
 }
}

 //disabling popup with jQuery magic!
 function disablePopup(){
 //disables popup only if it is enabled
 if(popupStatus==1){
 $("#backgroundPopup").fadeOut("slow");
 $("#overlay").fadeOut("slow");
 popupStatus = 0;
 }
 }


//centering popup
 function centerPopup(){
 //request data for centering
 var windowWidth = document.documentElement.clientWidth;
 var windowHeight = document.documentElement.clientHeight;
 var popupHeight = $("#overlay").height();
 var popupWidth = $("#overlay").width();
 //centering
 $("#overlay").css({
 "position": "absolute",
 "top": windowHeight/2-popupHeight/2,
 "left": windowWidth/2-popupWidth/2
 });
 //only need force for IE6

 $("#backgroundPopup").css({
 "height": windowHeight
 });

}


 $(document).ready(function(){

  $(".popupbutton").click(function(){
   //centering with css
   centerPopup();
   //load popup
    $starttab = $(this).attr('active');
    
   loadPopup();

   });


 //Click out event!
 $("#backgroundPopup").click(function(){
  disablePopup();
 });
 //Press Escape event!
 $(document).keypress(function(e){
 if(e.keyCode==27 && popupStatus==1){
  disablePopup();
 }
 });


  });