// TOGGLE VISIBILITY
//
// This script lets you show or hide a div by useing it's id attribute
//

    function toggle_visibility(id) {
       var e = document.getElementById(id);
       if(e != null) {
		   if(e.style.display == 'block') { 
		      e.style.display = 'none'; 
		   }
	       else { e.style.display = 'block'; }
       }
	   
    }
	// JavaScript Document