var subs_array = new Array("svc1","svc2","svc3","svc4","svc5","svc6","svc7","svc8","svc9","svc10","svc11","svc12","svc13","svc14","svc15");// Put the id's of your hidden divs in this array

function displaySubs(the_sub){

	if (document.getElementById(the_sub).style.display==""){

	document.getElementById(the_sub).style.display = "none";return

  }

  for (i=0;i<subs_array.length;i++){

	var my_sub = document.getElementById(subs_array[i]);

	my_sub.style.display = "none";

	}

  document.getElementById(the_sub).style.display = "";

  }