function showSubMenu()
{    
    if(arguments.length > 0)
   {
      if(currentPage && document.getElementById(currentPage))
      {
         document.getElementById(currentPage).style.display = "none";   
      } 
      for(var i=0; i < arguments.length; i++)
         if(document.getElementById(arguments[i]))
         {
             
             document.getElementById(arguments[i]).style.display = "block";
         }
   } 
}

function hideSubMenu()
{
    if(arguments.length > 0)
   {  
       for(var i=0; i < arguments.length; i++)
         if(document.getElementById(arguments[i]))
         {
             document.getElementById(arguments[i]).style.display = "none";
         }
       if(currentPage && document.getElementById(currentPage))
           {              
              document.getElementById(currentPage).style.display = "block";   
           }        
   }
}

function showcurrentMenu()
{
    if(currentPage)
    {
      if(document.getElementById(currentPage))
       {         
          document.getElementById(currentPage).style.display = "block";   
       } 
    }
}

function showcurrentSubMenu()
{
    if(currentSubCatrgory)
    {
      if(document.getElementById(currentSubCatrgory))
       {         
          document.getElementById(currentSubCatrgory).style.display = "block";   
       } 
     }
}