/* Dropdown menu script */

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

/* Prevents IE6 Background Flicker */

try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}


var curStep = 1;
var steps = new Array();
function imagegallery(num) {
steps = document.getElementById("galleryswap").getElementsByTagName("li");
	if (num != curStep) {
		elem = document.getElementById("portfolio" + num);
		prevElem = document.getElementById("portfolio" + curStep);
		elem.style.display = "block";
		prevElem.style.display = "none";
		steps[curStep-1].className = "";
		steps[num-1].className = "active";
		curStep = num;
	}
}