// sfrollover
 

if(document.images) {
  
	var excerptson = new Image(); 
	var excerptsoff = new Image();
	var quoteson = new Image(); 
	var quotesoff = new Image();
	var sdion = new Image(); 
	var sdioff = new Image();
	var touron = new Image(); 
	var touroff = new Image();
	
	excerptson.src = "images/sf_excerpts_on.gif";  
	excerptsoff.src = "images/sf_excerpts_off.gif";
	quoteson.src = "images/sf_quotes_on.gif";  
	quotesoff.src = "images/sf_quotes_off.gif";
	sdion.src = "images/sf_sdi_on.gif";  
	sdioff.src = "images/sf_sdi_off.gif";
	touron.src = "images/sf_tour_on.gif";  
	touroff.src = "images/sf_tour_off.gif";
}


function off(imgName) {
	if(document.images) {
	document[imgName].src = eval(imgName + 'off.src');
	}
}

function on(imgName) {
	if(document.images) {
	document[imgName].src = eval(imgName + 'on.src');
	}
}