function buyermenuhide(value)
         {          
		  if (value==0)
		   {
		     if(document.layers)
		       document.layers["layer1"].visibility='hide';
			 else
			  document.all["layer1"].style.visibility='hidden';			    
           }
		  }
		 function buyermenushow(value)
		  {
           if (value==1)
	         {
		   if(document.layers)
		   document.layers["layer1"].visibility='show';
		   else
		   document.all["layer1"].style.visibility='visible';
		    }
		}