//rollover script
        function rollOver(iName, iState)
         {
          if(document.images && self[iName + '_' + iState])
            document.images[iName].src = self[iName + '_' + iState].src;
        };
        
//preload jpg's        
        function preLoad()
        {
        var iPath = '/images/nav/';
        var iExt = 'jpg';
        var suffix = new Array('on', 'off');

          if(document.images)
          {
            var argLen = arguments.length;
            for(var i = 0; i < argLen; i++)
            {
              var arg = arguments[i];
              var sufLen = suffix.length;
              for(j = 0; j < sufLen; j++)
              {
                var suf = suffix[j]
                self[arg + '_' + suf] = new Image();
                self[arg + '_' + suf].src = iPath + arg + '_' + suf + '.' + iExt;
              };
            } ;  
          };
        };

//preload jpg's        
        function preLoadSub()
        {
        var iPath = '/images/subnav/';
        var iExt = 'jpg';
        var suffix = new Array('on', 'off');

          if(document.images)
          {
            var argLen = arguments.length;
            for(var i = 0; i < argLen; i++)
            {
              var arg = arguments[i];
              var sufLen = suffix.length;
              for(j = 0; j < sufLen; j++)
              {
                var suf = suffix[j]
                self[arg + '_' + suf] = new Image();
                self[arg + '_' + suf].src = iPath + arg + '_' + suf + '.' + iExt;
              };
            } ;  
          };
        };
        //preload jpg's        
        function preLoadgifSub()
        {
        var iPath = '/images/trans/';
        var iExt = 'gif';
        var suffix = new Array('on', 'off');

          if(document.images)
          {
            var argLen = arguments.length;
            for(var i = 0; i < argLen; i++)
            {
              var arg = arguments[i];
              var sufLen = suffix.length;
              for(j = 0; j < sufLen; j++)
              {
                var suf = suffix[j]
                self[arg + '_' + suf] = new Image();
                self[arg + '_' + suf].src = iPath + arg + '_' + suf + '.' + iExt;
              };
            } ;  
          };
        };