function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


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='+';
    }
else {
	sibling.style.display='block';
    obj.firstChild.firstChild.data='-';
    }
}
//
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('+');
    oSpan.appendChild(sign);
    oDT[i].insertBefore(oSpan, oDT[i].firstChild);
    oSpan.style.fontFamily='monospace';
    oSpan.style.paddingRight='0.5em';
    oDT[i].style.cursor='pointer';
    toggle(oDT[i]);
	}
oDT=null;
}
window.onload=function() {if(document.getElementById && document.createElement) {initCollapse();}}