function preload( path,imgName )
{
   eval( imgName + '_on=new Image();' );
   eval( imgName + '_off=new Image();' );
   eval( imgName + '_on.src =path+"images/nav/'+imgName+'_on.gif"' );
   eval( imgName + '_off.src=path+"images/nav/'+imgName+'_off.gif"' );
}


/////////////////////////////////////////////////////////////////////////
// Helpers for mouse over...

var boxTimer = null;
var imgTimer = null;
function startTimer()
{
   stopTimer();
   boxTimer = setTimeout( "showLayer( null )", 1000 );
   imgTimer = setTimeout( "hidePossibles()", 1000 );
}
function stopTimer()
{
   if( boxTimer )
      clearTimeout( boxTimer );
   boxTimer = null;
   if( imgTimer )
      clearTimeout( imgTimer );
   imgTimer = null;
}

function hidePossibles()
{
   if( document.images ) 
   {
//      if( document[ 'whatis' ] != null )
//         imgToggleOFF('whatis');
 //     if( document[ 'Results' ] != null )
 //        imgToggleOFF('Results');
      }
}