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View Full Version : Help with the Image Loader/Slideshow scripts



Delta88
03-22-2010, 07:01 PM
1) Script Title: Ultimate Fade-In Slideshow (v1.51) / Preload Image (w/ progress bar) script II

2) Script URL (on DD): slideshow script (http://www.dynamicdrive.com/dynamicindex14/fadeinslideshow.htm) / imageloader (http://www.dynamicdrive.com/dynamicindex4/preloadimage2.htm)

3) Describe problem:

Hi, I am going to put a new layout on my website, with an animated banner, using the slide show script. There are 21 images, and they are all 1000pxwidth, so I wanted to use the image loader script, as loading all them images takes a while and thre sometime ends up blank screen on the animation, when one hasnt loaded.

I put both scripts onto the page, and I think it has worked. I would wondered if someone would be able to check my code to see if it's correct.


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Documento sin t&iacute;tulo</title>
<script language="javascript" src="progressbar.js">

/*
Preload Image (w/ progress bar) script II (By BGAudioDr@aol.com, http://www.bgaudiodr.iwarp.com/)
Script featured on Dynamicdrive.com
For full source, TOS, and 100's more DHTML scripts, visit http://www.dynamicdrive.com
*/

</script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript">

/***********************************************
* Ultimate Fade-In Slideshow (v1.51): Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

var fadeimages=new Array()
//SET IMAGE PATHS. Extend or contract array as needed
fadeimages[0]=["/wp-content/themes/brown/h01.jpg", "", ""] //image with link and target syntax
fadeimages[1]=["/wp-content/themes/brown/h02.jpg", "", ""] //image with link and target syntax
fadeimages[2]=["/wp-content/themes/brown/h03.jpg", "", ""] //image with link and target syntax
fadeimages[3]=["/wp-content/themes/brown/h04.jpg", "", ""] //image with link and target syntax
fadeimages[4]=["/wp-content/themes/brown/h05.jpg", "", ""] //image with link and target syntax
fadeimages[5]=["/wp-content/themes/brown/h06.jpg", "", ""] //image with link and target syntax
fadeimages[6]=["/wp-content/themes/brown/h07.jpg", "", ""] //image with link and target syntax
fadeimages[7]=["/wp-content/themes/brown/h08.jpg", "", ""] //image with link and target syntax
fadeimages[8]=["/wp-content/themes/brown/h09.jpg", "", ""] //image with link and target syntax
fadeimages[9]=["/wp-content/themes/brown/h10.jpg", "", ""] //image with link and target syntax
fadeimages[10]=["/wp-content/themes/brown/h11.jpg", "", ""] //image with link and target syntax
fadeimages[11]=["/wp-content/themes/brown/h12.jpg", "", ""] //image with link and target syntax
fadeimages[12]=["/wp-content/themes/brown/h13.jpg", "", ""] //image with link and target syntax
fadeimages[13]=["/wp-content/themes/brown/h14.jpg", "", ""] //image with link and target syntax
fadeimages[14]=["/wp-content/themes/brown/h15.jpg", "", ""] //image with link and target syntax
fadeimages[15]=["/wp-content/themes/brown/h16.jpg", "", ""] //image with link and target syntax
fadeimages[16]=["/wp-content/themes/brown/h17.jpg", "", ""] //image with link and target syntax
fadeimages[17]=["/wp-content/themes/brown/h18.jpg", "", ""] //image with link and target syntax
fadeimages[18]=["/wp-content/themes/brown/h19.jpg", "", ""] //image with link syntax
fadeimages[19]=["/wp-content/themes/brown/h20.jpg", "", ""] //image with link and target syntax
fadeimages[20]=["/wp-content/themes/brown/h21.jpg", "", ""] //image with link and target syntax

var fadebgcolor="black"

////NO need to edit beyond here/////////////

var fadearray=new Array() //array to cache fadeshow instances
var fadeclear=new Array() //array to cache corresponding clearinterval pointers

var dom=(document.getElementById) //modern dom browsers
var iebrowser=document.all

function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder){
this.pausecheck=pause
this.mouseovercheck=0
this.delay=delay
this.degree=10 //initial opacity degree (10%)
this.curimageindex=0
this.nextimageindex=1
fadearray[fadearray.length]=this
this.slideshowid=fadearray.length-1
this.canvasbase="canvas"+this.slideshowid
this.curcanvas=this.canvasbase+"_0"
if (typeof displayorder!="undefined")
theimages.sort(function() {return 0.5 - Math.random();}) //thanks to Mike (aka Mwinter) :)
this.theimages=theimages
this.imageborder=parseInt(borderwidth)
this.postimages=new Array() //preload images
for (p=0;p<theimages.length;p++){
this.postimages[p]=new Image()
this.postimages[p].src=theimages[p][0]
}

var fadewidth=fadewidth+this.imageborder*2
var fadeheight=fadeheight+this.imageborder*2

if (iebrowser&&dom||dom) //if IE5+ or modern browsers (ie: Firefox)
document.write('<div id="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>')
else
document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>')

if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox
this.startit()
else{
this.curimageindex++
setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay)
}
}

function fadepic(obj){
if (obj.degree<100){
obj.degree+=10
if (obj.tempobj.filters&&obj.tempobj.filters[0]){
if (typeof obj.tempobj.filters[0].opacity=="number") //if IE6+
obj.tempobj.filters[0].opacity=obj.degree
else //else if IE5.5-
obj.tempobj.style.filter="alpha(opacity="+obj.degree+")"
}
else if (obj.tempobj.style.MozOpacity)
obj.tempobj.style.MozOpacity=obj.degree/101
else if (obj.tempobj.style.KhtmlOpacity)
obj.tempobj.style.KhtmlOpacity=obj.degree/100
else if (obj.tempobj.style.opacity&&!obj.tempobj.filters)
obj.tempobj.style.opacity=obj.degree/101
}
else{
clearInterval(fadeclear[obj.slideshowid])
obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1"
obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
obj.populateslide(obj.tempobj, obj.nextimageindex)
obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0
setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay)
}
}

fadeshow.prototype.populateslide=function(picobj, picindex){
var slideHTML=""
if (this.theimages[picindex][1]!="") //if associated link exists for image
slideHTML='<a href="'+this.theimages[picindex][1]+'" target="'+this.theimages[picindex][2]+'">'
slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">'
if (this.theimages[picindex][1]!="") //if associated link exists for image
slideHTML+='</a>'
picobj.innerHTML=slideHTML
}


fadeshow.prototype.rotateimage=function(){
if (this.pausecheck==1) //if pause onMouseover enabled, cache object
var cacheobj=this
if (this.mouseovercheck==1)
setTimeout(function(){cacheobj.rotateimage()}, 100)
else if (iebrowser&&dom||dom){
this.resetit()
var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
crossobj.style.zIndex++
fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50)
this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0"
}
else{
var ns4imgobj=document.images['defaultslide'+this.slideshowid]
ns4imgobj.src=this.postimages[this.curimageindex].src
}
this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0
}

fadeshow.prototype.resetit=function(){
this.degree=10
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
if (crossobj.filters&&crossobj.filters[0]){
if (typeof crossobj.filters[0].opacity=="number") //if IE6+
crossobj.filters(0).opacity=this.degree
else //else if IE5.5-
crossobj.style.filter="alpha(opacity="+this.degree+")"
}
else if (crossobj.style.MozOpacity)
crossobj.style.MozOpacity=this.degree/101
else if (crossobj.style.KhtmlOpacity)
crossobj.style.KhtmlOpacity=this.degree/100
else if (crossobj.style.opacity&&!crossobj.filters)
crossobj.style.opacity=this.degree/101
}


fadeshow.prototype.startit=function(){
var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
this.populateslide(crossobj, this.curimageindex)
if (this.pausecheck==1){ //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
var cacheobj=this
var crossobjcontainer=iebrowser? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid)
crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1}
crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0}
}
this.rotateimage()
}

</script>
</head>

<body>
<DIV class="style7"
style="LEFT: 0px; WIDTH: 222px; POSITION: absolute; TOP: 0px; HEIGHT: 85px">

<div align="left"> <script type="text/javascript">
//new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, pause (0=no, 1=yes),)
new fadeshow(fadeimages, 1000, 564, 0, 85, 0)

</script> </div>
</DIV>
</body>
</html>

gazzari
03-23-2010, 10:58 AM
I tried your script.

1: Remove the / from before your images in the array

Wrong...

fadeimages[0]=["/wp-content/themes/brown/h01.jpg", "", ""]
Right...

fadeimages[1]=["wp-content/themes/brown/h02.jpg", "", ""]

2: There does not appear to be enough time to load the images

new fadeshow(fadeimages, 1000, 564, 0, 85, 0)
When I changed the 85 to 850 (.85 second) it worked straight away, tryed it on my own server. Trying to change images too fast, they never get cached.

Delta88
03-23-2010, 06:54 PM
Thank you so much for the help. I didn't actually write that code, so I'll make sure the person who did correct themselves in the future.