// BEGIN RESIZEPANEL SUBCLASS //
YAHOO.widget.ResizePanel = function(el, userConfig) {
if (arguments.length > 0) {
		YAHOO.widget.ResizePanel.superclass.constructor.call(this, el, userConfig);
	}
}

YAHOO.extend(YAHOO.widget.ResizePanel, YAHOO.widget.Panel);
YAHOO.widget.ResizePanel.CSS_PANEL_RESIZE = "resizepanel";
YAHOO.widget.ResizePanel.CSS_RESIZE_HANDLE = "resizehandle";

YAHOO.widget.ResizePanel.prototype.init = function(el, userConfig) {
		YAHOO.widget.ResizePanel.superclass.init.call(this, el);
		this.beforeInitEvent.fire(YAHOO.widget.ResizePanel);

		YAHOO.util.Dom.addClass(this.innerElement, YAHOO.widget.ResizePanel.CSS_PANEL_RESIZE);

		this.resizeHandle = document.createElement("DIV");
		this.resizeHandle.id = this.id + "_r";
		this.resizeHandle.className = YAHOO.widget.ResizePanel.CSS_RESIZE_HANDLE;
						
		this.beforeRenderEvent.subscribe(function() {
		if (! this.footer) {
				this.setFooter("");
			}
	}, 
	this, true
);

this.renderEvent.subscribe(function() {
		var me = this;
						
		me.innerElement.appendChild(me.resizeHandle);

		this.ddResize = new YAHOO.util.DragDrop(this.resizeHandle.id, this.id);
		this.ddResize.setHandleElId(this.resizeHandle.id);

		var headerHeight = me.header.offsetHeight;

		this.ddResize.onMouseDown = function(e) {

				this.startWidth = me.innerElement.offsetWidth;
				this.startHeight = me.innerElement.offsetHeight;
							
				me.cfg.setProperty("width", this.startWidth + "px");
				me.cfg.setProperty("height", this.startHeight + "px");

				this.startPos = [YAHOO.util.Event.getPageX(e),
								YAHOO.util.Event.getPageY(e)];

				me.innerElement.style.overflow = "hidden";
				me.body.style.overflow = "auto";
		}
						
		this.ddResize.onDrag = function(e) {
				var newPos = [YAHOO.util.Event.getPageX(e),
							YAHOO.util.Event.getPageY(e)];
							
				var offsetX = newPos[0] - this.startPos[0];
				var offsetY = newPos[1] - this.startPos[1];
					
				var newWidth = Math.max(this.startWidth + offsetX, 10);
				var newHeight = Math.max(this.startHeight + offsetY, 10);

				me.cfg.setProperty("width", newWidth + "px");
				me.cfg.setProperty("height", newHeight + "px");

				var bodyHeight = (newHeight - 5 - me.footer.offsetHeight - me.header.offsetHeight - 3);
				if (bodyHeight < 0) {
						bodyHeight = 0;
				}

				me.body.style.height =  bodyHeight + "px";

				var innerHeight = me.innerElement.offsetHeight;
				var innerWidth = me.innerElement.offsetWidth;

				if (innerHeight < headerHeight) {
						me.innerElement.style.height = headerHeight + "px";
				}

				if (innerWidth < 20) {
						me.innerElement.style.width = "20px";
				}
		}

		}, this, true);

		if (userConfig) {
			this.cfg.applyConfig(userConfig, true);
		}

		this.initEvent.fire(YAHOO.widget.ResizePanel);
};

YAHOO.widget.ResizePanel.prototype.toString = function() {
		return "ResizePanel " + this.id;
	};
				
// END RESIZEPANEL SUBCLASS //