function btnfocus(obj){
//	imgId = obj.getAttribute('imgId');
//	var elm=document.getElementById(imgId);
	var elm=obj.firstChild;
	if(elm.nodeName!='img'){elm=elm.nextSibling;}
	elm.src=elm.src.replace("image/n_", "image/f_");
}
function btnmouseover(obj){
//	imgId = obj.getAttribute('imgId');
//	var elm=document.getElementById(imgId);
	var elm=obj.firstChild;
	if(elm.nodeName!='img'){elm=elm.nextSibling;}
	elm.src=elm.src.replace("image/n_", "image/f_");
}
function btnmouseout(obj){
//	imgId = obj.getAttribute('imgId');
//	var elm=document.getElementById(imgId);
	var elm=obj.firstChild;
	if(elm.nodeName!='img'){elm=elm.nextSibling;}
	elm.src=elm.src.replace("image/f_", "image/n_");
}