function headerLogoSwap(img,state){
	var imgSrc = img.src;
	if(state == 'on'){
		var imgSrcOn = imgSrc.replace("off.gif","on.gif")
		img.src = imgSrcOn;
	}else{
		var imgSrcOff = imgSrc.replace("on.gif","off.gif")
		img.src = imgSrcOff;
	}
}