var FadeInterval = 600;
var StartFadeAt = 7;
var FadeSteps = new Array();
	FadeSteps[1] = "ff";
	FadeSteps[2] = "ee";
	FadeSteps[3] = "dd";
	FadeSteps[4] = "cc";
	FadeSteps[5] = "bb";
	FadeSteps[6] = "aa";
	FadeSteps[7] = "99";
var W3CDOM = (document.createElement && document.getElementsByTagName);
addEvent(window, 'load', initFades);
function addEvent(obj, eventType,fn, useCapture)
{
	if (obj.addEventListener) {
		obj.addEventListener(eventType, fn, useCapture);
		return true;
	} else {
		if (obj.attachEvent) {
			var r = obj.attachEvent("on"+eventType, fn);
			return r;
		}
	}
}
function initFades() {
	if (!W3CDOM) return;
    var currentURL = unescape(window.location);
     if (currentURL.indexOf('#')>-1) 
          DoFade(StartFadeAt, currentURL.substring(currentURL.indexOf('#')+1,currentURL.length));
    var anchors = document.body.getElementsByTagName('a');
    for (var i=0;i<anchors.length;i++)
         if (anchors[i].href.indexOf('#')>-1)
         anchors[i].onclick = function(){Highlight(this.href);return true};
}

function Highlight(target) {

    var targetId = target.substring(target.indexOf('#')+1,target.length);
    DoFade(StartFadeAt, targetId);
}

function DoFade(colorId, targetId) {
    if (colorId >= 1) {
		document.getElementById(targetId).style.backgroundColor = "#ffff" + FadeSteps[colorId];
		
       if (colorId==1) {
         document.getElementById(targetId).style.backgroundColor = "#efefef";
	}
        colorId--;
        setTimeout("DoFade("+colorId+",'"+targetId+"')", FadeInterval);
	}
}

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

function toggle_visibility_hidden(id) {
       var e = document.getElementById(id);
       if(e.style.display == 'block')
          e.style.display = 'none';
       else
          e.style.display = 'block';
}