/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Fang :: http://tinyurl.com/7v7l8 */

function toggle(obj) {
// Moz. or IE
var sibling=(obj.nextSibling.nodeType==3)? obj.nextSibling.nextSibling : obj.nextSibling;
// hide or show
if(sibling.style.display=='' || sibling.style.display=='block') {
	sibling.style.display='none';
    obj.firstChild.firstChild.data='O'; //+
    }
else {
	sibling.style.display='block';
    obj.firstChild.firstChild.data='O'; //-
    }
}
//
function initCollapse() {
var oDT=document.getElementById('content').getElementsByTagName('dt');
for (var i=0; i < oDT.length; i++) {
	oDT[i].onclick=function() {toggle(this)};
    var oSpan=document.createElement('span');
    var sign=document.createTextNode('O'); //+
    oSpan.appendChild(sign);
    oDT[i].insertBefore(oSpan, oDT[i].firstChild);
    oSpan.style.fontFamily='tahoma';
    oSpan.style.paddingRight='0.5em';
    oDT[i].style.cursor='pointer';
    toggle(oDT[i]);
	}
oDT=null;
}
window.onload=function() {if(document.getElementById && document.createElement) {initCollapse();}}