dojo.require("dojo.fx");
var ScrollMenu = {
	menuId: "bandeau",
	initTop: 206,
	minOffset: 60,
	_lastOffset: 0,
	handler: function() {
		if (!this._node) { this._node = dojo.byId(this.menuId); }
		var offset = 0;
		if (window.pageYOffset) { offset = window.pageYOffset; }
		else if (document.body.scrollTop) { offset = document.body.scrollTop; }
		if (offset < 20) { offset = 0; }
		else if (Math.abs(offset - this._lastOffset) < this.minOffset) { return; }
		this._lastOffset = offset;
		offset += this.initTop;
		dojo.fx.slideTo({ node: this._node, top: offset, left: 0, duration: 200 }).play();
	}
};
window.onscroll = dojo.hitch(ScrollMenu, "handler");