//DD Tab Menu- Script rewritten April 27th, 07: http://www.dynamicdrive.com
//**Updated Feb 23rd, 08): Adds ability for menu to revert back to default selected tab when mouse moves out of menu

//Only 2 configuration variables below:

var ddtabmenu={
	disabletablinks: false, //Disable hyperlinks in 1st level tabs with sub contents (true or false)?
	snap2original: [true, 300], //Should tab revert back to default selected when mouse moves out of menu? ([true/false, delay_millisec]

	currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""), //get current page url (minus hostname, ie: http://www.dynamicdrive.com/)

definemenu:function(tabid, dselected){
	this[tabid+"-menuitems"]=null
	this[tabid+"-dselected"]=-1
	this.addEvent(window, function(){ddtabmenu.init(tabid, dselected)}, "load")
},

showsubmenu:function(tabid, targetitem){
	var menuitems=this[tabid+"-menuitems"]
	this.clearrevert2default(tabid)
 for (i=0; i<menuitems.length; i++){
		menuitems[i].className=""
		if (typeof menuitems[i].hasSubContent!="undefined")
			document.getElementById(menuitems[i].getAttribute("rel")).style.display="none"
	}
	targetitem.className="current"
	if (typeof targetitem.hasSubContent!="undefined")
		document.getElementById(targetitem.getAttribute("rel")).style.display="block"
},

isSelected:function(menuurl){
	var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
	return (ddtabmenu.currentpageurl==menuurl)
},

isContained:function(m, e){
	var e=window.event || e
	var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
	while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
	if (c==m)
		return true
	else
		return false
},

revert2default:function(outobj, tabid, e){
	if (!ddtabmenu.isContained(outobj, tabid, e)){
		window["hidetimer_"+tabid]=setTimeout(function(){
			ddtabmenu.showsubmenu(tabid, ddtabmenu[tabid+"-dselected"])
		}, ddtabmenu.snap2original[1])
	}
},

clearrevert2default:function(tabid){
 if (typeof window["hidetimer_"+tabid]!="undefined")
		clearTimeout(window["hidetimer_"+tabid])
},

addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
},

init:function(tabid, dselected){
	var menuitems=document.getElementById(tabid).getElementsByTagName("a")
	this[tabid+"-menuitems"]=menuitems
	for (var x=0; x<menuitems.length; x++){
		if (menuitems[x].getAttribute("rel")){
			this[tabid+"-menuitems"][x].hasSubContent=true
			if (ddtabmenu.disabletablinks)
				menuitems[x].onclick=function(){return false}
			if (ddtabmenu.snap2original[0]==true){
				var submenu=document.getElementById(menuitems[x].getAttribute("rel"))
				menuitems[x].onmouseout=function(e){ddtabmenu.revert2default(submenu, tabid, e)}
				submenu.onmouseover=function(){ddtabmenu.clearrevert2default(tabid)}
				submenu.onmouseout=function(e){ddtabmenu.revert2default(this, tabid, e)}
			}
		}
		else //for items without a submenu, add onMouseout effect
			menuitems[x].onmouseout=function(e){this.className=""; if (ddtabmenu.snap2original[0]==true) ddtabmenu.revert2default(this, tabid, e)}
		menuitems[x].onmouseover=function(){ddtabmenu.showsubmenu(tabid, this)}
		if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[x].href)){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
			var setalready=true
		}
		else if (parseInt(dselected)==x){
			ddtabmenu.showsubmenu(tabid, menuitems[x])
			this[tabid+"-dselected"]=menuitems[x]
		}
	}
}
}
/**
 * Copy the value of an input field's title attribute to its value attribute.
 * Clear the input field on focus if its value is the same as its title.
 * Repopulate the input field on blur if it is empty.
 * Hide the input field's associated label if it has one.
 */
var autoPopulate = {
	sInputClass:'populate', // Class name for input elements to autopopulate
	sHiddenClass:'structural', // Class name that gets assigned to hidden label elements
	bHideLabels:true, // If true, labels are hidden
	/**
	 * Main function
	 */
	init:function() {
		// Check for DOM support
		if (!document.getElementById || !document.createTextNode) {return;}
		// Find all input elements with the given className
		var arrInputs = autoPopulate.getElementsByClassName(document, 'input', autoPopulate.sInputClass);
		var iInputs = arrInputs.length;
		var oInput;
		for (var i=0; i<iInputs; i++) {
			oInput = arrInputs[i];
			// Make sure it's a text input
			if (oInput.type != 'text') { continue; }
			// Hide the input's label
			if (autoPopulate.bHideLabels) { autoPopulate.hideLabel(oInput.id); }
			// If value is empty and title is not, assign title to value
			if ((oInput.value == '') && (oInput.title != '')) { oInput.value = oInput.title; }
			// Add event handlers for focus and blur
			autoPopulate.addEvent(oInput, 'focus', function() {
				// If value and title are equal on focus, clear value
				if (this.value == this.title) {
					this.value = '';
					this.select(); // Make input caret visible in IE
				}
			});
			autoPopulate.addEvent(oInput, 'blur', function() {
				// If the field is empty on blur, assign title to value
				if (!this.value.length) { this.value = this.title; }
			});
		}
	},
	hideLabel:function(sId) {
		var arrLabels = document.getElementsByTagName('label');
		var iLabels = arrLabels.length;
		var oLabel;
		for (var i=0; i<iLabels; i++) {
			oLabel = arrLabels[i];
			if (oLabel.htmlFor == sId) {
				oLabel.className = oLabel.className + ' ' + autoPopulate.sHiddenClass;
			}
		}
	},
	/**
	 * getElementsByClassName function included here for portability.
	 * Remove if you are already using one.
	 * Written by Jonathan Snook, http://www.snook.ca/jonathan
	 * Add-ons by Robert Nyman, http://www.robertnyman.com
	 */
	getElementsByClassName:function(oElm, strTagName, strClassName) {
	    var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
	    var arrReturnElements = new Array();
	    strClassName = strClassName.replace(/\-/g, "\\-");
	    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	    var oElement;
	    for(var i=0; i<arrElements.length; i++){
	        oElement = arrElements[i];      
	        if(oRegExp.test(oElement.className)){
	            arrReturnElements.push(oElement);
	        }   
	    }
	    return (arrReturnElements)
	},
	/**
	 * addEvent function included here for portability.
	 * Remove if you are already using an addEvent/DOMReady function.
	 * Found at http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
	 */
	addEvent:function(obj, type, fn) {
		if (obj.addEventListener)
			obj.addEventListener(type, fn, false);
		else if (obj.attachEvent) {
			obj["e"+type+fn] = fn;
			obj[type+fn] = function() {obj["e"+type+fn](window.event);}
			obj.attachEvent("on"+type, obj[type+fn]);
		}
	}
};

/**
 * Init on window load.
 * Replace this with a call to your own addEvent/DOMReady function if you use one.
 */
autoPopulate.addEvent(window, 'load', autoPopulate.init);

// -------------------------------------------------------------------
// Image Thumbnail Viewer Script- By Dynamic Drive, available at: http://www.dynamicdrive.com
// Last updated: July 7th, 2008- Fixed enlarged image not showing in IE sometimes
// -------------------------------------------------------------------

var thumbnailviewer={
enableTitle: true, //Should "title" attribute of link be used as description?
enableAnimation: true, //Enable fading animation?
definefooter: '<div class="footerbar">CLICK TO CLOSE</div>', //Define HTML for footer interface
defineLoading: '<img src="/v/vspfiles/jmenu/loading.gif" /> Loading Image...', //Define HTML for "loading" div

/////////////No need to edit beyond here/////////////////////////

scrollbarwidth: 16,
opacitystring: 'filter:progid:DXImageTransform.Microsoft.alpha(opacity=10); -moz-opacity: 0.1; opacity: 0.1',
targetlinks:[], //Array to hold links with rel="thumbnail"

createthumbBox:function(){
//write out HTML for Image Thumbnail Viewer plus loading div
document.write('<div id="thumbBox" onClick="thumbnailviewer.closeit()"><div id="thumbImage"></div>'+this.definefooter+'</div>')
document.write('<div id="thumbLoading">'+this.defineLoading+'</div>')
this.thumbBox=document.getElementById("thumbBox")
this.thumbImage=document.getElementById("thumbImage") //Reference div that holds the shown image
this.thumbLoading=document.getElementById("thumbLoading") //Reference "loading" div that will be shown while image is fetched
this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
},


centerDiv:function(divobj){ //Centers a div element on the page
var ie=document.all && !window.opera
var dom=document.getElementById
var scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset
var scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset
var docwidth=(ie)? this.standardbody.clientWidth : window.innerWidth-this.scrollbarwidth
var docheight=(ie)? this.standardbody.clientHeight: window.innerHeight
var docheightcomplete=(this.standardbody.offsetHeight>this.standardbody.scrollHeight)? this.standardbody.offsetHeight : this.standardbody.scrollHeight //Full scroll height of document
var objwidth=divobj.offsetWidth //width of div element
var objheight=divobj.offsetHeight //height of div element
var topposition=(docheight>objheight)? scroll_top+docheight/2-objheight/2+"px" : scroll_top+10+"px" //Vertical position of div element: Either centered, or if element height larger than viewpoint height, 10px from top of viewpoint
divobj.style.left=docwidth/2-objwidth/2+"px" //Center div element horizontally
divobj.style.top=Math.floor(parseInt(topposition))+"px"
divobj.style.visibility="visible"
},

showthumbBox:function(){ //Show ThumbBox div
thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div
this.centerDiv(this.thumbBox)
if (this.enableAnimation){ //If fading animation enabled
this.currentopacity=0.1 //Starting opacity value
this.opacitytimer=setInterval("thumbnailviewer.opacityanimation()", 20)
}
},


loadimage:function(link){ //Load image function that gets attached to each link on the page with rel="thumbnail"
if (this.thumbBox.style.visibility=="visible") //if thumbox is visible on the page already
this.closeit() //Hide it first (not doing so causes triggers some positioning bug in Firefox
var imageHTML='<img src="'+link.getAttribute("href")+'" style="'+this.opacitystring+'" />' //Construct HTML for shown image
if (this.enableTitle && link.getAttribute("title")) //Use title attr of the link as description?
imageHTML+='<div class="title">'+link.getAttribute("title")+'</div>'
this.centerDiv(this.thumbLoading) //Center and display "loading" div while we set up the image to be shown
this.thumbImage.innerHTML=imageHTML //Populate thumbImage div with shown image's HTML (while still hidden)
this.featureImage=this.thumbImage.getElementsByTagName("img")[0] //Reference shown image itself
if (this.featureImage.complete)
thumbnailviewer.showthumbBox()
else{
this.featureImage.onload=function(){ //When target image has completely loaded
thumbnailviewer.showthumbBox() //Display "thumbbox" div to the world!
}
}
if (document.all && !window.createPopup) //Target IE5.0 browsers only. Address IE image cache not firing onload bug: panoramio.com/blog/onload-event/
this.featureImage.src=link.getAttribute("href")
this.featureImage.onerror=function(){ //If an error has occurred while loading the image to show
thumbnailviewer.thumbLoading.style.visibility="hidden" //Hide "loading" div, game over
}
},

setimgopacity:function(value){ //Sets the opacity of "thumbimage" div per the passed in value setting (0 to 1 and in between)
var targetobject=this.featureImage
if (targetobject.filters && targetobject.filters[0]){ //IE syntax
if (typeof targetobject.filters[0].opacity=="number") //IE6
targetobject.filters[0].opacity=value*100
else //IE 5.5
targetobject.style.filter="alpha(opacity="+value*100+")"
}
else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
targetobject.style.MozOpacity=value
else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
targetobject.style.opacity=value
else //Non of the above, stop opacity animation
this.stopanimation()
},

opacityanimation:function(){ //Gradually increase opacity function
this.setimgopacity(this.currentopacity)
this.currentopacity+=0.1
if (this.currentopacity>1)
this.stopanimation()
},

stopanimation:function(){
if (typeof this.opacitytimer!="undefined")
clearInterval(this.opacitytimer)
},


closeit:function(){ //Close "thumbbox" div function
this.stopanimation()
this.thumbBox.style.visibility="hidden"
this.thumbImage.innerHTML=""
this.thumbBox.style.left="-2000px"
this.thumbBox.style.top="-2000px"
},

cleanup:function(){ //Clean up routine on page unload
this.thumbLoading=null
if (this.featureImage) this.featureImage.onload=null
this.featureImage=null
this.thumbImage=null
for (var i=0; i<this.targetlinks.length; i++)
this.targetlinks[i].onclick=null
this.thumbBox=null
},

dotask:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
if (target.addEventListener)
target.addEventListener(tasktype, functionref, false)
else if (target.attachEvent)
target.attachEvent(tasktype, functionref)
},

init:function(){ //Initialize thumbnail viewer script by scanning page and attaching appropriate function to links with rel="thumbnail"
if (!this.enableAnimation)
this.opacitystring=""
var pagelinks=document.getElementsByTagName("a")
for (var i=0; i<pagelinks.length; i++){ //BEGIN FOR LOOP
if (pagelinks[i].getAttribute("rel") && pagelinks[i].getAttribute("rel")=="thumbnail"){ //Begin if statement
pagelinks[i].onclick=function(){
thumbnailviewer.stopanimation() //Stop any currently running fade animation on "thumbbox" div before proceeding
thumbnailviewer.loadimage(this) //Load image
return false
}
this.targetlinks[this.targetlinks.length]=pagelinks[i] //store reference to target link
} //end if statement
} //END FOR LOOP
//Reposition "thumbbox" div when page is resized
this.dotask(window, function(){if (thumbnailviewer.thumbBox.style.visibility=="visible") thumbnailviewer.centerDiv(thumbnailviewer.thumbBox)}, "resize")


} //END init() function

}

thumbnailviewer.createthumbBox() //Output HTML for the image thumbnail viewer
thumbnailviewer.dotask(window, function(){thumbnailviewer.init()}, "load") //Initialize script on page load
thumbnailviewer.dotask(window, function(){thumbnailviewer.cleanup()}, "unload")