function desc_gen(id)
  {
  temp="";
  eval("temp="+id+".style.visibility");
  if(temp == 'hidden') {
  eval(id+".style.visibility='visible'");
  eval(id+".style.display='block'");
   }
  else  {
    eval(id+".style.visibility='hidden'");
	eval(id+".style.display='none'");
	} 
 }

 function desc_show(name)
  {
   eval(name+".style.visibility='visible'");
  }

 function desc_hide(name)
  {
   eval(name+".style.visibility='hidden'");
  }

  function expand(id)
  {
  temp="";
  eval("temp="+id+".style.visibility");
  if(temp == 'hidden') {
  eval(id+".style.visibility='visible'");
  eval(id+".style.display='block'");
  eval(id+"_img.src='../images/arow_d.gif'");
   }
  else  {
    eval(id+".style.visibility='hidden'");
	eval(id+".style.display='none'");
    eval(id+"_img.src='../images/arow_l.gif'");
	}

  }

  function collapse()
  {
  document.refresh;
  }