function slider(id,timer,q)
{
	obj = document.getElementById(id);
	timer = timer || "normal";
	q = q || 4;
	var elWidth = parseInt(obj.parentNode.clientWidth / q);
	var pWidth = obj.parentNode.clientWidth;
	var a = obj.getElementsByTagName('a');
	$(obj).css('width',a.length * elWidth);
	for(var i = 0;i < a.length ; i++ )
		$(a[i]).css('width',elWidth);
	var next = function() {
		$(obj).css('left',q * elWidth);
		$(obj).animate({left: - (a.length * elWidth)},timer,'linear',next);
	}
	next();
}