var rollerh_curpos = new Object();
function showNext(gn){
	c = rollerh_curpos[gn];
	if(c == undefined){
		c = 0;
	}
	if(c >= $("div." + gn).length){
		$("div."+gn+":last").css("display","none");
		c = 0;
	}
	
	$("div."+gn+":eq(" + c + ")").fadeIn(1000, function() {
		//$("span").fadeIn(100);
	});
	$("div."+gn+":lt(" + c + ")").css("display","none");
	c++;
	rollerh_curpos[gn] = c;
}