IE = ((document.all)||(window.opera))
NN = (navigator.appName == "Netscape")
N5 = ((NN)&&(parseInt(navigator.appVersion) >= 5));
N4 = ((NN)&&(parseInt(navigator.appVersion) < 5));
NS = (document.layers)


       function preload_img()
       { 
          var img_list = preload_img.arguments;
          if (document.preloadlist == null) 
              document.preloadlist = new Array();
          var top = document.preloadlist.length;
          for (var i=0; i < img_list.length; i++) {
              document.preloadlist[top+i] = new Image;
              document.preloadlist[top+i].src = img_list[i+1];
          } 
       }

       function load_all()
       {
         preload_img(false);
       }

       function change_img(name, nsdoc, rpath, preload)
       { 
         var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
         if (name == '') 
            return;
         if (img) {
            img.altsrc = img.src;
            img.src    = rpath;
         } 
       }

       function restore_img(name, nsdoc)
       {
         var img = eval((navigator.appName.indexOf('Netscape', 0) != -1) ? nsdoc+'.'+name : 'document.all.'+name);
         if (name == '') 
            return;
         if (img && img.altsrc) {
            img.src    = img.altsrc;
            img.altsrc = null;
         } 
       }

       function SetTitle(title)
       {
          document.getElementById('PageTitle').innerHTML=title;
       }
       
       // Ajax post
       function xmlhttpPost(strURL, querystring, ret_func)
       {
           var xmlHttpReq = false;
           var self = this;
           // Mozilla/Safari
           if (window.XMLHttpRequest) {
               self.xmlHttpReq = new XMLHttpRequest();
           }
           // IE
           else if (window.ActiveXObject) {
               self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
           } else {
               alert ("Can`t send request! Your browser don`t support XMLRequest");
               return false;
           }

           self.xmlHttpReq.open('POST', strURL, true);
           self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
           self.xmlHttpReq.onreadystatechange = function() {
               if (self.xmlHttpReq.readyState == 4) {
                   if (ret_func) {
                       ret_func(self.xmlHttpReq.responseText);
                   }
               }
           }
           self.xmlHttpReq.send( querystring );
       }