// -------------------------------------------------------------------


// DHTML Window Widget- By Dynamic Drive, available at: http://www.dynamicdrive.com


// v1.0: Script created Feb 15th, 07'


// v1.01: Feb 21th, 07' (see changelog.txt)


// v1.02: March 26th, 07' (see changelog.txt)


// v1.03: May 5th, 07' (see changelog.txt)


// v1.1:  Oct 29th, 07' (see changelog.txt)


// -------------------------------------------------------------------





var dhtmlwindow={


imagefiles:['windowfiles/min.gif', 'windowfiles/close.gif', 'windowfiles/restore.gif', 'windowfiles/resize.gif'], //Path to 4 images used by script, in that order


ajaxbustcache: true, //Bust caching when fetching a file via Ajax?


ajaxloadinghtml: '<b>Loading Page. Please wait...</b>', //HTML to show while window fetches Ajax Content?





minimizeorder: 0,


zIndexvalue:100,


tobjects: [], //object to contain references to dhtml window divs, for cleanup purposes


lastactivet: {}, //reference to last active DHTML window





init:function(t){


	var domwindow=document.createElement("div") //create dhtml window div


	domwindow.id=t


	domwindow.className="dhtmlwindow"


	var domwindowdata=''


	domwindowdata='<div class="drag-handle">'


	domwindowdata+='DHTML Window <div class="drag-controls"><img src="'+this.imagefiles[0]+'" title="Minimize" /><img src="'+this.imagefiles[1]+'" title="Close" /></div>'


	domwindowdata+='</div>'


	domwindowdata+='<div class="drag-contentarea"></div>'


	domwindowdata+='<div class="drag-statusarea"><div class="drag-resizearea" style="background: transparent url('+this.imagefiles[3]+') top right no-repeat;">&nbsp;</div></div>'


	domwindowdata+='</div>'


	domwindow.innerHTML=domwindowdata


	document.getElementById("dhtmlwindowholder").appendChild(domwindow)


	//this.zIndexvalue=(this.zIndexvalue)? this.zIndexvalue+1 : 100 //z-index value for DHTML window: starts at 0, increments whenever a window has focus


	var t=document.getElementById(t)


	var divs=t.getElementsByTagName("div")


	for (var i=0; i<divs.length; i++){ //go through divs inside dhtml window and extract all those with class="drag-" prefix


		if (/drag-/.test(divs[i].className))


			t[divs[i].className.replace(/drag-/, "")]=divs[i] //take out the "drag-" prefix for shorter access by name


	}


	//t.style.zIndex=this.zIndexvalue //set z-index of this dhtml window


	t.handle._parent=t //store back reference to dhtml window


	t.resizearea._parent=t //same


	t.controls._parent=t //same


	t.onclose=function(){return true} //custom event handler "onclose"


	t.onmousedown=function(){dhtmlwindow.setfocus(this)} //Increase z-index of window when focus is on it


	t.handle.onmousedown=dhtmlwindow.setupdrag //set up drag behavior when mouse down on handle div


	t.resizearea.onmousedown=dhtmlwindow.setupdrag //set up drag behavior when mouse down on resize div


	t.controls.onclick=dhtmlwindow.enablecontrols


	t.show=function(){dhtmlwindow.show(this)} //public function for showing dhtml window


	t.hide=function(){dhtmlwindow.hide(this)} //public function for hiding dhtml window


	t.close=function(){dhtmlwindow.close(this)} //public function for closing dhtml window (also empties DHTML window content)


	t.setSize=function(w, h){dhtmlwindow.setSize(this, w, h)} //public function for setting window dimensions


	t.moveTo=function(x, y){dhtmlwindow.moveTo(this, x, y)} //public function for moving dhtml window (relative to viewpoint)


	t.isResize=function(bol){dhtmlwindow.isResize(this, bol)} //public function for specifying if window is resizable


	t.isScrolling=function(bol){dhtmlwindow.isScrolling(this, bol)} //public function for specifying if window content contains scrollbars


	t.load=function(contenttype, contentsource, title){dhtmlwindow.load(this, contenttype, contentsource, title)} //public function for loading content into window


	this.tobjects[this.tobjects.length]=t


	return t //return reference to dhtml window div


},





open:function(t, contenttype, contentsource, title, attr, recalonload){


	var d=dhtmlwindow //reference dhtml window object


	function getValue(Name){


		var config=new RegExp(Name+"=([^,]+)", "i") //get name/value config pair (ie: width=400px,)


		return (config.test(attr))? parseInt(RegExp.$1) : 0 //return value portion (int), or 0 (false) if none found


	}


	if (document.getElementById(t)==null) //if window doesn't exist yet, create it


		t=this.init(t) //return reference to dhtml window div


	else


		t=document.getElementById(t)


	this.setfocus(t)


	t.setSize(getValue(("width")), (getValue("height"))) //Set dimensions of window


	var xpos=getValue("center")? "middle" : getValue("left") //Get x coord of window


	var ypos=getValue("center")? "middle" : getValue("top") //Get y coord of window


	//t.moveTo(xpos, ypos) //Position window


	if (typeof recalonload!="undefined" && recalonload=="recal" && this.scroll_top==0){ //reposition window when page fully loads with updated window viewpoints?


		if (window.attachEvent && !window.opera) //In IE, add another 400 milisecs on page load (viewpoint properties may return 0 b4 then)


			this.addEvent(window, function(){setTimeout(function(){t.moveTo(xpos, ypos)}, 15000)}, "load")


		else


			this.addEvent(window, function(){t.moveTo(xpos, ypos)}, "load")


	}


	t.isResize(getValue("resize")) //Set whether window is resizable


	t.isScrolling(getValue("scrolling")) //Set whether window should contain scrollbars


	t.style.visibility="visible"


	t.style.display="block"


	t.contentarea.style.display="block"


	t.moveTo(xpos, ypos) //Position window


	t.load(contenttype, contentsource, title)


	if (t.state=="minimized" && t.controls.firstChild.title=="Restore"){ //If window exists and is currently minimized?


		t.controls.firstChild.setAttribute("src", dhtmlwindow.imagefiles[0]) //Change "restore" icon within window interface to "minimize" icon


		t.controls.firstChild.setAttribute("title", "Minimize")


		t.state="fullview" //indicate the state of the window as being "fullview"


	}


	return t


},





setSize:function(t, w, h){ //set window size (min is 150px wide by 100px tall)


	t.style.width=Math.max(parseInt(w), 150)+"px"


	t.contentarea.style.height=Math.max(parseInt(h), 100)+"px"


},





moveTo:function(t, x, y){ //move window. Position includes current viewpoint of document


	this.getviewpoint() //Get current viewpoint numbers


	t.style.left=(x=="middle")? this.scroll_left+(this.docwidth-t.offsetWidth)/2+"px" : this.scroll_left+parseInt(x)+"px"


	t.style.top=(y=="middle")? this.scroll_top+(this.docheight-t.offsetHeight)/2+"px" : this.scroll_top+parseInt(y)+"px"


},





isResize:function(t, bol){ //show or hide resize inteface (part of the status bar)


	t.statusarea.style.display=(bol)? "block" : "none"


	t.resizeBool=(bol)? 1 : 0


},





isScrolling:function(t, bol){ //set whether loaded content contains scrollbars


	t.contentarea.style.overflow=(bol)? "auto" : "hidden"


},





load:function(t, contenttype, contentsource, title){ //loads content into window plus set its title (3 content types: "inline", "iframe", or "ajax")


	if (t.isClosed){


		alert("DHTML Window has been closed, so no window to load contents into. Open/Create the window again.")


		return


	}


	var contenttype=contenttype.toLowerCase() //convert string to lower case


	if (typeof title!="undefined")


		t.handle.firstChild.nodeValue=title


	if (contenttype=="inline")


		t.contentarea.innerHTML=contentsource


	else if (contenttype=="div"){


		var inlinedivref=document.getElementById(contentsource)


		t.contentarea.innerHTML=(inlinedivref.defaultHTML || inlinedivref.innerHTML) //Populate window with contents of inline div on page


		if (!inlinedivref.defaultHTML)


			inlinedivref.defaultHTML=inlinedivref.innerHTML //save HTML within inline DIV


		inlinedivref.innerHTML="" //then, remove HTML within inline DIV (to prevent duplicate IDs, NAME attributes etc in contents of DHTML window


		inlinedivref.style.display="none" //hide that div


	}


	else if (contenttype=="iframe"){


		t.contentarea.style.overflow="hidden" //disable window scrollbars, as iframe already contains scrollbars


		if (!t.contentarea.firstChild || t.contentarea.firstChild.tagName!="IFRAME") //If iframe tag doesn't exist already, create it first


			t.contentarea.innerHTML='<iframe src="" style="margin:0; padding:0; width:100%; height: 100%" name="_iframe-'+t.id+'"></iframe>'


		window.frames["_iframe-"+t.id].location.replace(contentsource) //set location of iframe window to specified URL


		}


	else if (contenttype=="ajax"){


		this.ajax_connect(contentsource, t) //populate window with external contents fetched via Ajax


	}


	t.contentarea.datatype=contenttype //store contenttype of current window for future reference


},





setupdrag:function(e){


	var d=dhtmlwindow //reference dhtml window object


	var t=this._parent //reference dhtml window div


	d.etarget=this //remember div mouse is currently held down on ("handle" or "resize" div)


	var e=window.event || e


	d.initmousex=e.clientX //store x position of mouse onmousedown


	d.initmousey=e.clientY


	d.initx=parseInt(t.offsetLeft) //store offset x of window div onmousedown


	d.inity=parseInt(t.offsetTop)


	d.width=parseInt(t.offsetWidth) //store width of window div


	d.contentheight=parseInt(t.contentarea.offsetHeight) //store height of window div's content div


	if (t.contentarea.datatype=="iframe"){ //if content of this window div is "iframe"


		t.style.backgroundColor="#F8F8F8" //colorize and hide content div (while window is being dragged)


		t.contentarea.style.visibility="hidden"


	}


	document.onmousemove=d.getdistance //get distance travelled by mouse as it moves


	document.onmouseup=function(){


		if (t.contentarea.datatype=="iframe"){ //restore color and visibility of content div onmouseup


			t.contentarea.style.backgroundColor="white"


			t.contentarea.style.visibility="visible"


		}


		d.stop()


	}


	return false


},





getdistance:function(e){


	var d=dhtmlwindow


	var etarget=d.etarget


	var e=window.event || e


	d.distancex=e.clientX-d.initmousex //horizontal distance travelled relative to starting point


	d.distancey=e.clientY-d.initmousey


	if (etarget.className=="drag-handle") //if target element is "handle" div


		d.move(etarget._parent, e)


	else if (etarget.className=="drag-resizearea") //if target element is "resize" div


		d.resize(etarget._parent, e)


	return false //cancel default dragging behavior


},





getviewpoint:function(){ //get window viewpoint numbers


	var ie=document.all && !window.opera


	var domclientWidth=document.documentElement && parseInt(document.documentElement.clientWidth) || 100000 //Preliminary doc width in non IE browsers


	this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes


	this.scroll_top=(ie)? this.standardbody.scrollTop : window.pageYOffset


	this.scroll_left=(ie)? this.standardbody.scrollLeft : window.pageXOffset


	this.docwidth=(ie)? this.standardbody.clientWidth : (/Safari/i.test(navigator.userAgent))? window.innerWidth : Math.min(domclientWidth, window.innerWidth-16)


	this.docheight=(ie)? this.standardbody.clientHeight: window.innerHeight


},





rememberattrs:function(t){ //remember certain attributes of the window when it's minimized or closed, such as dimensions, position on page


	this.getviewpoint() //Get current window viewpoint numbers


	t.lastx=parseInt((t.style.left || t.offsetLeft))-dhtmlwindow.scroll_left //store last known x coord of window just before minimizing


	t.lasty=parseInt((t.style.top || t.offsetTop))-dhtmlwindow.scroll_top


	t.lastwidth=parseInt(t.style.width) //store last known width of window just before minimizing/ closing


},





move:function(t, e){


	t.style.left=dhtmlwindow.distancex+dhtmlwindow.initx+"px"


	t.style.top=dhtmlwindow.distancey+dhtmlwindow.inity+"px"


},





resize:function(t, e){


	t.style.width=Math.max(dhtmlwindow.width+dhtmlwindow.distancex, 150)+"px"


	t.contentarea.style.height=Math.max(dhtmlwindow.contentheight+dhtmlwindow.distancey, 100)+"px"


},





enablecontrols:function(e){


	var d=dhtmlwindow


	var sourceobj=window.event? window.event.srcElement : e.target //Get element within "handle" div mouse is currently on (the controls)


	if (/Minimize/i.test(sourceobj.getAttribute("title"))) //if this is the "minimize" control


		d.minimize(sourceobj, this._parent)


	else if (/Restore/i.test(sourceobj.getAttribute("title"))) //if this is the "restore" control


		d.restore(sourceobj, this._parent)


	else if (/Close/i.test(sourceobj.getAttribute("title"))) //if this is the "close" control


		d.close(this._parent)


	return false


},





minimize:function(button, t){


	dhtmlwindow.rememberattrs(t)


	button.setAttribute("src", dhtmlwindow.imagefiles[2])


	button.setAttribute("title", "Restore")


	t.state="minimized" //indicate the state of the window as being "minimized"


	t.contentarea.style.display="none"


	t.statusarea.style.display="none"


	if (typeof t.minimizeorder=="undefined"){ //stack order of minmized window on screen relative to any other minimized windows


		dhtmlwindow.minimizeorder++ //increment order


		t.minimizeorder=dhtmlwindow.minimizeorder


	}


	t.style.left="10px" //left coord of minmized window


	t.style.width="200px"


	var windowspacing=t.minimizeorder*10 //spacing (gap) between each minmized window(s)


	t.style.top=dhtmlwindow.scroll_top+dhtmlwindow.docheight-(t.handle.offsetHeight*t.minimizeorder)-windowspacing+"px"


},





restore:function(button, t){


	dhtmlwindow.getviewpoint()


	button.setAttribute("src", dhtmlwindow.imagefiles[0])


	button.setAttribute("title", "Minimize")


	t.state="fullview" //indicate the state of the window as being "fullview"


	t.style.display="block"


	t.contentarea.style.display="block"


	if (t.resizeBool) //if this window is resizable, enable the resize icon


		t.statusarea.style.display="block"


	t.style.left=parseInt(t.lastx)+dhtmlwindow.scroll_left+"px" //position window to last known x coord just before minimizing


	t.style.top=parseInt(t.lasty)+dhtmlwindow.scroll_top+"px"


	t.style.width=parseInt(t.lastwidth)+"px"


},








close:function(t){


	try{


		var closewinbol=t.onclose()


	}


	catch(err){ //In non IE browsers, all errors are caught, so just run the below


		var closewinbol=true


 }


	finally{ //In IE, not all errors are caught, so check if variable isn't defined in IE in those cases


		if (typeof closewinbol=="undefined"){


			alert("An error has occured somwhere inside your \"onclose\" event handler")


			var closewinbol=true


		}


	}


	if (closewinbol){ //if custom event handler function returns true


		if (t.state!="minimized") //if this window isn't currently minimized


			dhtmlwindow.rememberattrs(t) //remember window's dimensions/position on the page before closing


		if (window.frames["_iframe-"+t.id]) //if this is an IFRAME DHTML window


			window.frames["_iframe-"+t.id].location.replace("about:blank")


		else


			t.contentarea.innerHTML=""


		t.style.display="none"


		t.isClosed=true //tell script this window is closed (for detection in t.show())


	}


	return closewinbol


},








setopacity:function(targetobject, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)


	if (!targetobject)


		return


	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


},





setfocus:function(t){ //Sets focus to the currently active window


	this.zIndexvalue++


	t.style.zIndex=this.zIndexvalue


	t.isClosed=false //tell script this window isn't closed (for detection in t.show())


	this.setopacity(this.lastactivet.handle, 0.5) //unfocus last active window


	this.setopacity(t.handle, 1) //focus currently active window


	this.lastactivet=t //remember last active window


},








show:function(t){


	if (t.isClosed){


		alert("DHTML Window has been closed, so nothing to show. Open/Create the window again.")


		return


	}


	if (t.lastx) //If there exists previously stored information such as last x position on window attributes (meaning it's been minimized or closed)


		dhtmlwindow.restore(t.controls.firstChild, t) //restore the window using that info


	else


		t.style.display="block"


	this.setfocus(t)


	t.state="fullview" //indicate the state of the window as being "fullview"


},





hide:function(t){


	t.style.display="none"


},





ajax_connect:function(url, t){


	var page_request = false


	var bustcacheparameter=""


	if (window.XMLHttpRequest) // if Mozilla, IE7, Safari etc


		page_request = new XMLHttpRequest()


	else if (window.ActiveXObject){ // if IE6 or below


		try {


		page_request = new ActiveXObject("Msxml2.XMLHTTP")


		} 


		catch (e){


			try{


			page_request = new ActiveXObject("Microsoft.XMLHTTP")


			}


			catch (e){}


		}


	}


	else


		return false


	t.contentarea.innerHTML=this.ajaxloadinghtml


	page_request.onreadystatechange=function(){dhtmlwindow.ajax_loadpage(page_request, t)}


	if (this.ajaxbustcache) //if bust caching of external page


		bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()


	page_request.open('GET', url+bustcacheparameter, true)


	page_request.send(null)


},





ajax_loadpage:function(page_request, t){


	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){


	t.contentarea.innerHTML=page_request.responseText


	}


},








stop:function(){


	dhtmlwindow.etarget=null //clean up


	document.onmousemove=null


	document.onmouseup=null


},





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)


},





cleanup:function(){


	for (var i=0; i<dhtmlwindow.tobjects.length; i++){


		dhtmlwindow.tobjects[i].handle._parent=dhtmlwindow.tobjects[i].resizearea._parent=dhtmlwindow.tobjects[i].controls._parent=null


	}


	window.onload=null


}





} //End dhtmlwindow object





document.write('<div id="dhtmlwindowholder"><span style="display:none">.</span></div>') //container that holds all dhtml window divs on page


window.onunload=dhtmlwindow.cleanup