function toggle(id) {
       	var e = document.getElementById(id);


	var arr = new Array();
	arr = document.getElementsByTagName( "DIV" );

	for(var i=1; i < arr.length; i++)
	{
		var tagObj = document.getElementsByTagName( "DIV" ).item(i);
		tagObj.style.display = 'none';
	}

       if(e.style.display == 'block')
          e.style.display = 'none';
       else
          e.style.display = 'block';
    }