var newWin = null;
function openWin(url, w, h, scrollState) {
	var resize = "no";
	var scroll = (scrollState != '') ? scrollState : "yes";
	if(scroll != "no") {
		resize = "yes";
	}
	var props = "width=" + w + ",height=" + h + ",toolbar=no,menubar=no,personalbar=no,copyhistory=no,scrollbars=" + scroll + ",resizable=" + resize;
	var handle = "oNewWin";
	if(newWin && !newWin.closed) {
		newWin.focus();
	}
	newWin = window.open(url, handle, props);
}






function mouseOver(obj) {
	var props = getImageProps(obj);
	if(props.sImg.indexOf('_on') == -1) obj.src = props.sPath + props.sImg + '_on' + props.sExt;
}


function mouseOut(obj) {
	var props = getImageProps(obj);
	if(props.sImg.indexOf('_on') != -1) obj.src = props.sPath + props.sImg.replace('_on', '') + props.sExt;
}








function getImageProps(obj) {
	var oImg = new Object();
		oImg.sPath = obj.src.substring( 0, obj.src.lastIndexOf('/') +1 );
		oImg.sImg = obj.src.substring(obj.src.lastIndexOf('/') +1, obj.src.lastIndexOf('.'));

		oImg.sExt = (obj.src.indexOf('.jpg') !=-1) ? '.jpg' : '.gif';
	return oImg;
}


function getRootPath() {
	return window.location.protocol + "//" + window.location.host;
}


function getOverState(obj) {
	var reExt = /(.gif|.jpg)$/;
	return obj.src.replace(reExt, '_on$1')
}








function init() {
	// local images in the body content that should rollover
	var oRolloverImages = document.getElementById('primary').getElementsByTagName('IMG');
	var sRootPath = getRootPath();


	var oImg = null;
	var sImg = '';


	for(var i=0; i<oRolloverImages.length; i++) {
		if(oRolloverImages[i].className == 'rollover') {
			oImg = getImageProps(oRolloverImages[i]);
			sImg = oImg.sImg;
			window[sImg + '_on'] = new Image();
			window[sImg + '_on'].src = getOverState(oRolloverImages[i]);
			if(oRolloverImages[i].src.indexOf('_on')!=-1) continue;
			oRolloverImages[i].onmouseover = function() { mouseOver(this) }
			oRolloverImages[i].onmouseout = function() { mouseOut(this) }
		}
	}
	
	var oRolloverAnchors = document.getElementById('primary').getElementsByTagName('A');
	for(var j=0; j<oRolloverAnchors.length; j++) {
		if(oRolloverAnchors[j].className.indexOf('rollover') != -1) {
			var oRolloverImage = oRolloverAnchors[j].getElementsByTagName('IMG')[0];
			oImg = getImageProps(oRolloverImage);
			sImg = oImg.sImg;			
			window[sImg + '_on'] = new Image();
			window[sImg + '_on'].src = getOverState(oRolloverImage);
			
			
			oRolloverAnchors[j].onmouseover = function() { mouseOver(this.getElementsByTagName('IMG')[0]) }
			oRolloverAnchors[j].onmouseout = function() { mouseOut(this.getElementsByTagName('IMG')[0]) }
		}
	}
	
	bLoaded = true;
}


addEvent(window, 'load', init);














// written by Dean Edwards, 2005
// with input from Tino Zijdel


// http://dean.edwards.name/weblog/2005/10/add-event/


function addEvent(element, type, handler) {
	// assign each event handler a unique ID
	if (!handler.$$guid) handler.$$guid = addEvent.guid++;
	// create a hash table of event types for the element
	if (!element.events) element.events = {};
	// create a hash table of event handlers for each element/event pair
	var handlers = element.events[type];
	if (!handlers) {
		handlers = element.events[type] = {};
		// store the existing event handler (if there is one)
		if (element["on" + type]) {
			handlers[0] = element["on" + type];
		}
	}
	// store the event handler in the hash table
	handlers[handler.$$guid] = handler;
	// assign a global event handler to do all the work
	element["on" + type] = handleEvent;
};
// a counter used to create unique IDs
addEvent.guid = 1;


function removeEvent(element, type, handler) {
	// delete the event handler from the hash table
	if (element.events && element.events[type]) {
		delete element.events[type][handler.$$guid];
	}
};


function handleEvent(event) {
	var returnValue = true;
	// grab the event object (IE uses a global event object)
	event = event || fixEvent(window.event);
	// get a reference to the hash table of event handlers
	var handlers = this.events[event.type];
	// execute each event handler
	for (var i in handlers) {
		this.$$handleEvent = handlers[i];
		if (this.$$handleEvent(event) === false) {
			returnValue = false;
		}
	}
	return returnValue;

};


function fixEvent(event) {
	// add W3C standard event methods
	event.preventDefault = fixEvent.preventDefault;
	event.stopPropagation = fixEvent.stopPropagation;
	return event;
};
fixEvent.preventDefault = function() {
	this.returnValue = false;
};
fixEvent.stopPropagation = function() {
	this.cancelBubble = true;
};