// JavaScript Document


    function toggle_visibility(id) {
       var e = document.getElementById(id);
       if(e.style.display == 'block')
          e.style.display = 'none';
       else
          e.style.display = 'block';
    }
	
	function showHider () {
		var i = 1;
		var classer = document.getElementById("switchIt" + i).className;
		while (i < 20)
			{
			toggle_visibility("sublink" + i);
			// switch class
			if (classer == "classExpandHeadlines")
				{
				document.getElementById("switchIt" + i).className = "classContractHeadlines";
				}
	   else if (classer == "classContractHeadlines")
				{
				document.getElementById("switchIt" + i).className = "classExpandHeadlines";
				}
			i++;
			}
	}