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www/javascript/jsScroller.js

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+//Written by Nathan Faubion: http://n-son.com
+//Use this or edit how you want, just give me
+//some credit!
+
+function jsScroller (o, w, h) {
+	var self = this;
+	var list = o.getElementsByTagName("div");
+	for (var i = 0; i < list.length; i++) {
+		if (list[i].className.indexOf("Scroller-Container") > -1) {
+			o = list[i];
+		}
+	}
+	
+	//Private methods
+	this._setPos = function (x, y) {
+		if (x < this.viewableWidth - this.totalWidth) 
+			x = this.viewableWidth - this.totalWidth;
+		if (x > 0) x = 0;
+		if (y < this.viewableHeight - this.totalHeight) 
+			y = this.viewableHeight - this.totalHeight;
+		if (y > 0) y = 0;
+		this._x = x;
+		this._y = y;
+		with (o.style) {
+			left = this._x +"px";
+			top  = this._y +"px";
+		}
+	};
+	
+	//Public Methods
+	this.reset = function () {
+		this.content = o;
+		this.totalHeight = o.offsetHeight;
+		this.totalWidth	 = o.offsetWidth;
+		this._x = 0;
+		this._y = 0;
+		with (o.style) {
+			left = "0px";
+			top  = "0px";
+		}
+	};
+	this.scrollBy = function (x, y) {
+		this._setPos(this._x + x, this._y + y);
+	};
+	this.scrollTo = function (x, y) {
+		this._setPos(-x, -y);
+	};
+	this.stopScroll = function () {
+		if (this.scrollTimer) window.clearInterval(this.scrollTimer);
+	};
+	this.startScroll = function (x, y) {
+		this.stopScroll();
+		this.scrollTimer = window.setInterval(
+			function(){ self.scrollBy(x, y); }, 40
+		);
+	};
+	this.swapContent = function (c, w, h) {
+		o = c;
+		var list = o.getElementsByTagName("div");
+		for (var i = 0; i < list.length; i++) {
+			if (list[i].className.indexOf("Scroller-Container") > -1) {
+				o = list[i];
+			}
+		}
+		if (w) this.viewableWidth  = w;
+		if (h) this.viewableHeight = h;
+		this.reset();
+	};
+	
+	//variables
+	this.content = o;
+	this.viewableWidth  = w;
+	this.viewableHeight = h;
+	this.totalWidth	 = o.offsetWidth;
+	this.totalHeight = o.offsetHeight;
+	this.scrollTimer = null;
+	this.reset();
+};