// JavaScript Document
//Раскрывающиеся списки

function clickHandler(e) 
          { 
          var targetId, srcElement, targetElement; 
          
          if(window.event)
          srcElement = window.event.srcElement; 
          else
          srcElement =e.srcElement? e.srcElement : e.target;  
          
          
          if (srcElement.className == "dropmenu" || "droparrow" || "spisok_nav" )
               { targetElement=document.getElementById(srcElement.id + "drop");
                    if (targetElement.style.display == "none")
                          { 
                          targetElement.style.display = ""; 
                          }
                    else 
                         { 
                         targetElement.style.display = "none"; 
                         } 
                    }
               } 
document.onclick = clickHandler;