function setupScales() {
	var dom = YAHOO.util.Dom;	
	var projects = dom.getElementsByClassName("project");
	for (var i=0; i<projects.length; i++) {
		var scale = document.createElement("div");
		var arrow = document.createElement("div");
		scale.className = "scale";
		scale.arrow = arrow;
		arrow.className = "arrow";		
		scale.appendChild(arrow);
		projects[i].insertBefore(scale,projects[i].firstChild);				
				
		scale.onmouseover = function () {
			dom.addClass(this,"on");
		}
 		scale.onmouseout = function () {
			dom.removeClass(this,"on");
		}

	    var slider = YAHOO.widget.Slider.getHorizSlider(scale, arrow, 0, 92, 0);
		slider.images = projects[i].getElementsByTagName("img");
		if (slider.images[0]) {
			var height = parseInt(dom.getStyle(slider.images[0],"height"));
			slider.setValue(Math.floor((height-60)/0.70));
		}
		slider.subscribe("change", function() { 
			var percent = 1+Math.floor(this.getValue()*0.70);
			for (var i=0; i<this.images.length; i++) {
				dom.generateId(this.images[i]);
				dom.setStyle(this.images[i].id,'height',Math.floor(60+percent)+'px');
			}			
		});

		dom.setStyle(arrow,"display","block");

	}
	
}

YAHOO.util.Event.onContentReady("footer",setupScales);