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"), ""); }
			 }
			  }
			
sfHover1 = function() { 
var sfEls = document.getElementById("nav1").getElementsByTagName("li"); 
	for (var i=0; i<sfEls.length; i++) { 
		sfEls[i].onmouseover=function() { 
			this.className+=" sfhover1"; } 
		sfEls[i].onmouseout=function() { 
			this.className=this.className.replace(new RegExp(" sfhover1\\b"), ""); }
			 }
			  }
			
sfHover2 = function() { 
var sfEls = document.getElementById("nav2").getElementsByTagName("li"); 
	for (var i=0; i<sfEls.length; i++) { 
		sfEls[i].onmouseover=function() { 
			this.className+=" sfhover2"; } 
		sfEls[i].onmouseout=function() { 
			this.className=this.className.replace(new RegExp(" sfhover2\\b"), ""); }
			 }
			  }
			  
sfHover3 = function() { 
var sfEls = document.getElementById("nav3").getElementsByTagName("li"); 
	for (var i=0; i<sfEls.length; i++) { 
		sfEls[i].onmouseover=function() { 
			this.className+=" sfhover3"; } 
		sfEls[i].onmouseout=function() { 
			this.className=this.className.replace(new RegExp(" sfhover3\\b"), ""); }
			 }
			  }