// 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 change_text(id,msg) {
       var e = document.getElementById(id);
				e.innerHTML = msg;
    }