http://fc-arsenal.hu/js/contentslider.js

1//** Featured Content Slider script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
2//** Last updated: Nov 3rd- 07- Added optional fade transition effect.
3
4////Ajax related settings
5var csbustcachevar=0 //bust potential caching of external pages after initial Ajax request? (1=yes, 0=no)
6var enabletransition=1 //enable fade into view transition effect? (1=yes, 0=no)
7var csloadstatustext="<img src='indexelem_files/loading.gif' /> Betöltés..." //HTML to indicate Ajax page is being fetched
8var csexternalfiles=[] //External .css or .js files to load to style the external content(s), if any. Separate multiple files with comma ie: ["cat.css", dog.js"]
9
10////NO NEED TO EDIT BELOW////////////////////////
11var enablepersist=true
12var slidernodes=new Object() //Object array to store references to each content slider's DIV containers (<div class="contentdiv">)
13var csloadedobjects="" //Variable to store file names of .js/.css files already loaded (if Ajax is used)
14
15function ContentSlider(sliderid, autorun, customPaginateText, customNextText){
16	var slider=document.getElementById(sliderid)
17	if (typeof customPaginateText!="undefined" && customPaginateText!="") //Custom array of pagination links text defined?
18		slider.paginateText=customPaginateText
19	if (typeof customNextText!="undefined" && customNextText!="") //Custom HTML for "Next" link defined?
20		slider.nextText=customNextText
21	slidernodes[sliderid]=[] //Array to store references to this content slider's DIV containers (<div class="contentdiv">)
22	ContentSlider.loadobjects(csexternalfiles) //Load external .js and .css files, if any
23	var alldivs=slider.getElementsByTagName("div")
24	for (var i=0; i<alldivs.length; i++){
25		if (alldivs[i].className=="opacitylayer")
26			slider.opacitylayer=alldivs[i]
27		else if (alldivs[i].className=="contentdiv"){
28			slidernodes[sliderid].push(alldivs[i]) //add this DIV reference to array
29			if (typeof alldivs[i].getAttribute("rel")=="string") //If get this DIV's content via Ajax (rel attr contains path to external page)
30				ContentSlider.ajaxpage(alldivs[i].getAttribute("rel"), alldivs[i])
31		}
32	}
33	ContentSlider.buildpagination(sliderid)
34	var loadfirstcontent=true
35	if (enablepersist && getCookie(sliderid)!=""){ //if enablepersist is true and cookie contains corresponding value for slider
36		var cookieval=getCookie(sliderid).split(":") //process cookie value ([sliderid, int_pagenumber (div content to jump to)]
37		if (document.getElementById(cookieval[0])!=null && typeof slidernodes[sliderid][cookieval[1]]!="undefined"){ //check cookie value for validity
38			ContentSlider.turnpage(cookieval[0], parseInt(cookieval[1])) //restore content slider's last shown DIV
39			loadfirstcontent=false
40		}
41	}
42	if (loadfirstcontent==true) //if enablepersist is false, or cookie value doesn't contain valid value for some reason (ie: user modified the structure of the HTML)
43		ContentSlider.turnpage(sliderid, 0) //Display first DIV within slider
44	if (typeof autorun=="number" && autorun>0) //if autorun parameter (int_miliseconds) is defined, fire auto run sequence
45		window[sliderid+"timer"]=setTimeout(function(){ContentSlider.autoturnpage(sliderid, autorun)}, autorun)
46}
47
48ContentSlider.buildpagination=function(sliderid){
49	var slider=document.getElementById(sliderid)
50	var paginatediv=document.getElementById("paginate-"+sliderid) //reference corresponding pagination DIV for slider
51	var pcontent=""
52	for (var i=0; i<slidernodes[sliderid].length; i++) //For each DIV within slider, generate a pagination link
53		pcontent+='<a href="#" onClick=\"ContentSlider.turnpage(\''+sliderid+'\', '+i+'); return false\">'+(slider.paginateText? slider.paginateText[i] : i+1)+'</a> '
54
55	paginatediv.innerHTML=pcontent
56	paginatediv.onclick=function(){ //cancel auto run sequence (if defined) when user clicks on pagination DIV
57	if (typeof window[sliderid+"timer"]!="undefined")
58		clearTimeout(window[sliderid+"timer"])
59	}
60}
61
62ContentSlider.turnpage=function(sliderid, thepage){
63	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //gather pagination links
64	for (var i=0; i<slidernodes[sliderid].length; i++){ //For each DIV within slider
65		paginatelinks[i].className="" //empty corresponding pagination link's class 

65name
66		slidernodes[sliderid][i].style.display="none" //hide DIV
67	}
68	paginatelinks[thepage].className="selected" //for selected DIV, set corresponding pagination link's class name
69	if (enabletransition){
70		if (window[sliderid+"fadetimer"])
71			clearTimeout(window[sliderid+"fadetimer"])
72		this.setopacity(sliderid, 0.1)
73	}
74	slidernodes[sliderid][thepage].style.display="block" //show selected DIV
75	if (enabletransition)
76		this.fadeup(sliderid, thepage)
77	//Set "Next" pagination link's (last link within pagination DIV) "rel" attribute to the next DIV number to show
78	paginatelinks[paginatelinks.length-1].setAttribute("rel", thenextpage=(thepage<paginatelinks.length-2)? thepage+1 : 0)
79	if (enablepersist)
80		setCookie(sliderid, sliderid+":"+thepage)
81}
82
83ContentSlider.autoturnpage=function(sliderid, autorunperiod){
84	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //Get pagination links
85	var nextpagenumber=parseInt(paginatelinks[paginatelinks.length-1].getAttribute("rel")) //Get page number of next DIV to show
86	ContentSlider.turnpage(sliderid, nextpagenumber) //Show that DIV
87	window[sliderid+"timer"]=setTimeout(function(){ContentSlider.autoturnpage(sliderid, autorunperiod)}, autorunperiod)
88}
89
90ContentSlider.setopacity=function(sliderid, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
91	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
92	if (targetobject && targetobject.filters && targetobject.filters[0]){ //IE syntax
93		if (typeof targetobject.filters[0].opacity=="number") //IE6
94			targetobject.filters[0].opacity=value*100
95		else //IE 5.5
96			targetobject.style.filter="alpha(opacity="+value*100+")"
97		}
98	else if (targetobject && typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
99		targetobject.style.MozOpacity=value
100	else if (targetobject && typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
101		targetobject.style.opacity=value
102	targetobject.currentopacity=value
103}
104
105ContentSlider.fadeup=function(sliderid){
106	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
107	if (targetobject && targetobject.currentopacity<1){
108		this.setopacity(sliderid, targetobject.currentopacity+0.1)
109		window[sliderid+"fadetimer"]=setTimeout(function(){ContentSlider.fadeup(sliderid)}, 100)
110	}
111}
112
113function getCookie(Name){ 
114	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
115	if (document.cookie.match(re)) //if cookie found
116		return document.cookie.match(re)[0].split("=")[1] //return its value
117	return ""
118}
119
120function setCookie(name, value){
121	document.cookie = name+"="+value
122}
123
124////////////////Ajax Related functions //////////////////////////////////
125
126ContentSlider.ajaxpage=function(url, thediv){
127	var page_request = false
128	var bustcacheparameter=""
129	if (window.XMLHttpRequest) // if Mozilla, Safari etc
130		page_request = new XMLHttpRequest()
131	else if (window.ActiveXObject){ // if IE
132		try {
133		page_request = new ActiveXObject("Msxml2.XMLHTTP")
134		} 
135		catch (e){
136		try{
137		page_request = new ActiveXObject("Microsoft.XMLHTTP")
138		}
139		catch (e){}
140		}
141	}
142	else
143		return false
144	thediv.innerHTML=csloadstatustext
145	page_request.onreadystatechange=function(){
146		ContentSlider.loadpage(page_request, thediv)
147	}
148	if (csbustcachevar) //if bust caching of external page
149		bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
150	page_request.open('GET', url+bustcacheparameter, true)
151	page_request.send(null)
152}
153
154ContentSlider.loadpage=function(page_request, thediv){
155	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
156		thediv.innerHTML=page_request.responseText
157}
158
159ContentSlider.loadobjects=function(externalfiles){ //function to load external .js and .css files. Parameter accepts a list of external files to load (array)
160	for (var i=0; i<externalfiles.length; i++){
161		var file=externalfiles[i]
162		var fileref=""
163		if (csloadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
164			if (file.indexOf(".js")!=-1){ //If object is a js file
165				fileref=document.createElement('script')
166				fileref.setAttribute("type","text/javascript");
167				fileref.setAttribute("src", file);
168			}
169			else if (file.indexOf(".css")!=-1){ //If object is a css file
170				fileref=document.createElement("link")
171				fileref.setAttribute("rel", "stylesheet");
172				fileref.setAttribute("type", "text/css");
173				fileref.setAttribute("href", file);
174			}
175		}
176		if (fileref!=""){
177			document.getElementsByTagName("head").item(0).appendChild(fileref)
178			csloadedobjects+=file+" " //Remember this object as being already added to page
179		}
180	}
181}