/* define dropDown menu */
sfHover = function() {
	var sfEls = document.getElementById("left-navi").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);

function showimg(id,id2){
	
				document.getElementById(id2).style.display="inline";
			
				document.getElementById(id).style.display="none";
}
function hideimg(id,id2){
	
				document.getElementById(id2).style.display="none";
			
				document.getElementById(id).style.display="inline";
}