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Thread: SetTimeout placement question

  1. #1
    Join Date
    Jul 2009
    Posts
    3

    SetTimeout placement question

    I have a script running on my page to run two image slideshows with a fade effect. (can be seen at houseofshoesonline.com) I would like to have a pause before the second slideshow starts to fade, but would like the delay to remain the same as the first so that the fading effect alternates.

    Where would i use the SetTimeout("",x)? Thank you in advance the code is extensive and is as follows -

    Code:
    <script type="text/javascript">
     
    var fadeimages=new Array()
    //SET IMAGE PATHS. Extend or contract array as needed
    fadeimages[0]=["images/heelsad.jpg", 
    
    "http://shop.houseofshoesonline.com/category.sc?categoryId=15", "_new"] 
    fadeimages[1]=["images/clubwearad.jpg", 
    
    "http://shop.houseofshoesonline.com/category.sc?categoryId=19", "_new"] 
    fadeimages[2]=["images/accessoriesad.jpg", 
    
    "http://www.shop.houseofshoesonline.com/category.sc?categoryId=22", "_new"] 
    
    var fadeimages2=new Array() //2nd array set example. Remove or add more sets as needed.
    //SET IMAGE PATHS. Extend or contract array as needed
    fadeimages2[0]=["images/adtemplate.jpg", "", ""] //plain image syntax
    fadeimages2[1]=["images/adtemplate2.jpg", "http://www.cssdrive.com", ""] //image with link syntax
    fadeimages2[2]=["images/adtemplate3.jpg", "http://www.javascriptkit.com", "_new"] //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;"><di
    
    v id="'+this.canvasbase+'_0" 
    
    style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:p
    
    rogid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opaci
    
    ty: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:p
    
    rogid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opaci
    
    ty: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>

  2. #2
    Join Date
    Oct 2007
    Location
    Western Massachusetts, USA
    Posts
    387
    Where is fadeshow() called? If it is something like onload="fadeshow(...); fadeshow(...)" then just do onload="fadeshow(...); setTimeout('fadeshow(...)', ...)"
    Computer programmer / web developer.

  3. #3
    Join Date
    Jul 2009
    Posts
    3
    oh, sorry.


    this is where it is called, there are two instances of it -

    Code:
    <script type="text/javascript">
    //new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, 
    
    pause (0=no, 1=yes), optionalRandomOrder)
    new fadeshow(fadeimages, 900, 150, 0, 4000, 1)
    </script>
    
    
    <script type="text/javascript">
    //new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, 
    
    pause (0=no, 1=yes), optionalRandomOrder)
    new fadeshow(fadeimages2, 900, 150, 0, 4000, 1)
    </script>

    so it would be
    Code:
    SetTimeout(new fadeshow(fadeimages2, 900, 150, 0, 4000, 1),2000)
    ??

    also, would this cause it to not load for 2000 milliseconds, as opposed to pausing for 2 seconds?

  4. #4
    Join Date
    Jul 2009
    Posts
    3
    the page reloads after 2 seconds and hangs at a white screen when i have it coded like this -

    Code:
    <script type="text/javascript">
    //new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, 
    
    pause (0=no, 1=yes), optionalRandomOrder)
    setTimeout("new fadeshow(fadeimages2, 900, 150, 0, 4000, 1)", 1000);
    </script>

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