// Developed by Igor Mino <igor@platon.org>
 // Copyright (c) 2009 Platon Technologies Ltd, http://platon.sk
 // All rights reserved.
          
          
     function showPopup(cellDay,day,popup_div) {          
          
                                                                   
          if (document.getElementById(popup_div).style.visibility=='visible') { return; }
                    
          var obj = document.getElementById(cellDay);
          var posX = obj.offsetLeft;
          var posY = obj.offsetTop;
          
          var a=0;
          var ret='';
          
          while(obj.offsetParent){
          posX=posX+obj.offsetParent.offsetLeft;
          posY=posY+obj.offsetParent.offsetTop;
          if (obj==document.getElementsByTagName('body')[0]) { break }
          else { obj=obj.offsetParent; } 
          }
          //alert(posX+'-'+posY);
          
          document.getElementById(popup_div).style.visibility='visible';
          document.getElementById(popup_div).style.left=posX+'px';
          document.getElementById(popup_div).style.top=posY+'px';
                                                                                       
          document.getElementById(popup_div).innerHTML=document.getElementById('data_'+cellDay).innerHTML;
                                                                   
                                                                                     
     }
     
     function hiddenPopup(popup) {                                        
          if (document.getElementById(popup).style.visibility=='hidden') { return; }          
          document.getElementById(popup).style.visibility='hidden';                               
     }