window.addEvent('load', function() {
	var hldiv = document.id('HLwrapper');
    var ua = navigator.userAgent;
    if (ua.indexOf('MSIE') == -1) { hldiv.setStyles( {'height':1} ); }
	hldiv.setProperty('open', false);
	var invisible_h=document.getElementById("HLhidden").offsetHeight-hoffset;
	var trigger =  document.id('HLtrigger');
	var ani = new Fx.Tween(hldiv, {duration: 700});
	ani.options.transition = Fx.Transitions.Cubic.easeOut;
	hldiv.setStyles({'margin-top':-(invisible_h)});
    hldiv.setOpacity(HLopacity);
    
	trigger.addEvent('click', function(event){
		if (hldiv.getProperty('open')=='true') {
            var invisible_h=document.getElementById("HLhidden").offsetHeight-hoffset;
			ani.start('margin-top',-invisible_h);
			hldiv.setProperty('open', false);            
		} else {
			ani.start('margin-top',0);
            hldiv.setProperty('open', true);   
		}
	});
});