var FadeInStep = 10;
var FadeOutStep = 20;


function tree(_source,_allcat)
{
   for(i=0; i<_allcat.length-1; i++ )
   {


        {
             document.getElementById(_allcat[i]).style.display='none';
        }

  }




   for(i=0; i<_source.length-1; i++ )
   {


        {
             document.getElementById(_source[i]).style.display='block';
        }

  }
}