img_close = 'http://www.wpl.ca/wp-content/themes/WPL/images/menu/expand.jpg';
img_open = 'http://www.wpl.ca/wp-content/themes/WPL/images/menu/collapse.jpg';

function toggleMenu(objID) {

var imgid = 'button'+objID;
var button_id = document.getElementById(imgid);
if (!document.getElementById) return;
var ob = document.getElementById(objID).style;
ob.display = (ob.display == 'block')?'none': 'block';
if(ob.display == 'block')
{ button_id.setAttribute ('src', img_open);}
else{ button_id.setAttribute ('src', img_close);}
}

function toggleMenu2(objID) {

var imgid = 'button'+objID;
var button_id = document.getElementById(imgid);
if (!document.getElementById) return;
var ob = document.getElementById(objID).style;
ob.display = (ob.display == 'block')?'none': 'block';

}