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Thread: Help for a noob... Photo gallery slide show not palying automatically

  1. #1
    Join Date
    Jun 2013
    Posts
    3

    Help for a noob... Photo gallery slide show not palying automatically

    Good day!

    I am new in web development and i am trying to work on our company's website. I am having trouble in making the slideshow to autoplay once the site is loaded. here is the code for java:

    NewImg = new Array (
    "images/Pic03.png",
    "images/Pic01.jpg",
    "images/Pic02.jpg"
    );

    var random_display = 0;
    var ImgNum = 0;
    var ImgLength = NewImg.length - 1;
    var totalImages = NewImage.l
    //Time delay between Slides in milliseconds
    var delay = 1500;
    var lock = true;
    var run;

    function chgImg(direction) {
    if (document.images) {
    ImgNum = ImgNum + direction;
    if (ImgNum > ImgLength) {
    ImgNum = 0;
    }
    if (ImgNum < 0) {
    ImgNum = ImgLength;
    }
    document.slideshow.src = NewImg[ImgNum];
    }
    }


    And here's the html:
    <div id="slideshow">
    <img src="images/Pic03.png" name="slideshow">
    </div>

    Css:
    #slideshow {
    margin-top: 170px;
    width: 1024px;
    height: 368px;
    position: absolute;
    z-index:3;
    }

    Help will greatly be appreciated.

    Thanks!

  2. #2
    Join Date
    Jun 2004
    Location
    Portsmouth UK
    Posts
    2,678
    Code:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    
    <head>
      <title></title>
    <style type="text/css">
    /*<![CDATA[*/
    #slideshow {
    margin-top: 170px;
    width: 1024px;
    height: 368px;
    position: absolute;
    z-index:3;
    }
    /*]]>*/
    </style>
    </head>
    
    <body>
    
    
    <div id="slideshow">
    <img src="http://www.vicsjavascripts.org.uk/StdImages/1.gif" name="slideshow">
    </div>
    
    <script type="text/javascript">
    /*<![CDATA[*/
    var NewImg = new Array (
    "http://www.vicsjavascripts.org.uk/StdImages/1.gif",
    "http://www.vicsjavascripts.org.uk/StdImages/2.gif",
    "http://www.vicsjavascripts.org.uk/StdImages/3.gif"
    );
    
    var random_display = 0;
    var ImgNum = 0;
    var ImgLength = NewImg.length - 1;
    var totalImages = NewImg-1
    //Time delay between Slides in milliseconds
    var delay = 1500;
    var lock = true;
    var run;
    
    function chgImg(direction) {
     if (document.images) {
      ImgNum = ImgNum + direction;
      if (ImgNum > ImgLength) {
       ImgNum = 0;
      }
      if (ImgNum < 0) {
       ImgNum = ImgLength;
      }
      document.slideshow.src = NewImg[ImgNum];
      chgImg.to=setTimeout(function(){ chgImg(direction); },delay);
     }
    }
    
    chgImg(1)
    
    /*]]>*/
    </script>
    
    </body>
    
    </html>
    or

    Code:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    
    <head>
      <title></title>
    <style type="text/css">
    /*<![CDATA[*/
    #slideshowp {
    margin-top: 170px;
    width: 1024px;
    height: 368px;
    position: absolute;
    z-index:3;
    }
    /*]]>*/
    </style>
    </head>
    
    <body>
    
    
    <div id="slideshow">
    <img src="http://www.vicsjavascripts.org.uk/StdImages/1.gif" id="img" width="100" onmouseover="Pause('img');" onmouseout="Auto('img');" >
    </div>
    
    <input type="button" name="" value="Next"  onmouseup="Next('img',1);"/>
    <input type="button" name="" value="Back"  onmouseup="Next('img',-1);"/>
    <input type="button" name="" value="GoTo 1"  onmouseup="GoTo('img',0);"/>
    <input type="button" name="" value="GoTo 2"  onmouseup="GoTo('img',1);"/>
    <input type="button" name="" value="GoTo 3"  onmouseup="GoTo('img',2);"/>
    <input type="button" name="" value="Pause"  onmouseup="Pause('img');"/>
    <input type="button" name="" value="Auto"  onmouseup="Auto('img');"/>
    
    <script type="text/javascript">
    /*<![CDATA[*/
    
    function GoTo(id,nu){
     var o=chgImg[id];
     if (o&&o.ary[nu]){
      chgImg(o,nu);
     }
    }
    
    function Next(id,ud){
     var o=chgImg[id],ud=typeof(ud)=='number'&&ud<0?-1:1;
     if (o){
      chgImg(o,o.cnt+ud);
     }
    }
    
    function Auto(id,ms){
     var o=chgImg[id];
     if (o){
      o.to=setTimeout(function(){ chgImg(o,true); },ms||200)
     }
    }
    
    function Pause(id,ms,srt){
     var o=chgImg[id];
     if (o){
      clearTimeout(o.to);
     }
    }
    
    function chgImg(opt,auto) {
     var o=chgImg[opt.ID],obj=document.getElementById(opt.ID),ok;
     if (!o&&obj){
      var ary=opt.ImageArray,ud=opt.Direction,ms=opt.Hold,srt=opt.AutoStart,z0=0;
      if (ary instanceof Array){
       o=chgImg[opt.ID]={
        ID:opt.ID,
        ary:[],
        ud:typeof(ud)=='number'&&ud<0?-1:1,
        lgth:ary.length-1,
        ms:typeof(ms)=='number'&&ms>0?ms:1000,
        auto:typeof(srt)=='number'&&srt>0?true:false,
        cnt:0
       }
      }
      for (;z0<=o.lgth;z0++){
       o.ary[z0]=new Image();
       o.ary[z0].src=ary[z0];
      }
      o.auto?Auto(o.ID,srt):null;
     }
     else if (o){
      o.auto=auto===true;
      clearTimeout(o.to);
      o.cnt=o.auto?o.cnt+o.ud:auto;
      o.cnt=o.cnt>o.lgth?0:o.cnt<0?o.lgth:o.cnt;
      ok=o.ary[o.cnt].width>40;
      ok?obj.src=o.ary[o.cnt].src:null;
      !ok||o.auto?Auto(o.ID,ok?o.ms:200):null;
     }
    }
    
    chgImg({
     ID:'img',
     ImageArray:[
      "http://www.vicsjavascripts.org.uk/StdImages/1.gif",
      "http://www.vicsjavascripts.org.uk/StdImages/2.gif",
      "http://www.vicsjavascripts.org.uk/StdImages/3.gif"
     ],
     Direction:1,
     Hold:1500,
     AutoStart:1000
    })
    
    /*]]>*/
    </script>
    
    </body>
    
    </html>
    or

    Code:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    
    <head>
      <title></title>
    <style type="text/css">
    /*<![CDATA[*/
    #slideshowp {
    margin-top: 170px;
    width: 1024px;
    height: 368px;
    position: absolute;
    z-index:3;
    }
    /*]]>*/
    </style>
    </head>
    
    <body>
    
    
    <div id="slideshow">
    <img src="http://www.vicsjavascripts.org.uk/StdImages/1.gif" id="img" width="100" onmouseover="Pause('img');" onmouseout="Auto('img');" >
    </div>
    
    <input type="button" name="" value="Next"  onmouseup="Next('img',1);"/>
    <input type="button" name="" value="Back"  onmouseup="Next('img',-1);"/>
    <input type="button" name="" value="GoTo 1"  onmouseup="GoTo('img',0);"/>
    <input type="button" name="" value="GoTo 2"  onmouseup="GoTo('img',1);"/>
    <input type="button" name="" value="GoTo 3"  onmouseup="GoTo('img',2);"/>
    <input type="button" name="" value="Pause"  onmouseup="Pause('img');"/>
    <input type="button" name="" value="Auto"  onmouseup="Auto('img');"/>
    
    <script type="text/javascript">
    /*<![CDATA[*/
    
    function GoTo(id,nu){
     var o=chgImg[id];
     if (o&&o.ary[nu]){
      chgImg(o,nu);
     }
    }
    
    function Next(id,ud){
     var o=chgImg[id],ud=typeof(ud)=='number'&&ud<0?-1:1;
     if (o){
      chgImg(o,o.cnt+ud);
     }
    }
    
    function Auto(id,ms){
     var o=chgImg[id];
     if (o){
      o.to=setTimeout(function(){ chgImg(o,true); },ms||200)
     }
    }
    
    function Pause(id,ms,srt){
     var o=chgImg[id];
     if (o){
      clearTimeout(o.to);
     }
    }
    
    function chgImg(opt,auto) {
     var o=chgImg[opt.ID],obj=document.getElementById(opt.ID),ok,rtn=[0,0];
     if (!o&&obj){
      var ary=opt.ImageArray,ud=opt.Direction,ms=opt.Animate,hold=opt.Hold,srt=opt.AutoStart,ms=typeof(ms)=='number'&&ms>0?ms:1000,z0=0;
      if (ary instanceof Array){
       o=chgImg[opt.ID]={
        ID:opt.ID,
        obj:obj,
        a:[obj.cloneNode(false)],
        ary:[],
        ud:typeof(ud)=='number'&&ud<0?-1:1,
        lgth:ary.length-1,
        ms:ms,
        hold:typeof(hold)=='number'&&hold>0?hold:ms*4,
        auto:typeof(srt)=='number'&&srt>0?true:false,
        cnt:0
       }
      }
      o.a[0].style.position='absolute';
      o.a[0].style.zIndex='101';
      o.a[0].style.left='0px';
      o.a[0].style.top='-3000px';
      document.body.appendChild(o.a[0]);
      for (;z0<=o.lgth;z0++){
       o.ary[z0]=new Image();
       o.ary[z0].src=ary[z0];
      }
      o.auto?Auto(o.ID,srt):null;
     }
     else if (o){
      while(obj){
       rtn[0]+=obj.offsetLeft;
       rtn[1]+=obj.offsetTop;
       obj=obj.offsetParent;
      }
      o.auto=auto===true;
      clearTimeout(o.to);
      o.cnt=o.auto?o.cnt+o.ud:auto;
      o.cnt=o.cnt>o.lgth?0:o.cnt<0?o.lgth:o.cnt;
      ok=o.ary[o.cnt].width>40;
      if (ok){
       o.a[0].src=o.ary[o.cnt].src
       o.a[0].style.width=o.obj.width+'px';
       o.a[0].style.height=o.obj.height+'px';
       animate(o,o.a,0,100,new Date(),o.ms)
       o.a[0].style.left=rtn[0]+'px';
       o.a[0].style.top=rtn[1]+'px';
      }
      else if (o.auto){
       Auto(o.ID,200);
      }
     }
    }
    
    function animate(o,a,f,t,srt,mS){
     clearTimeout(a[2]);
     var ms=new Date().getTime()-srt,n=(t-f)/mS*ms+f;
     if (isFinite(n)){
      a[0].style.filter='alpha(opacity='+n+')';
      a[0].style.opacity=a[0].style.MozOpacity=a[0].style.WebkitOpacity=a[0].style.KhtmlOpacity=n/100-.001;
     }
     if (ms<mS){
      a[2]=setTimeout(function(){ animate(o,a,f,t,srt,mS); },10);
     }
     else {
      o.obj.src=a[0].src;
      a[0].style.top='-3000px';
      o.auto?Auto(o.ID,o.hold):null;
     }
    }
    
    chgImg({
     ID:'img',
     ImageArray:[
      "http://www.vicsjavascripts.org.uk/StdImages/1.gif",
      "http://www.vicsjavascripts.org.uk/StdImages/2.gif",
      "http://www.vicsjavascripts.org.uk/StdImages/3.gif"
     ],
     Animate:1000,
     Direction:1,
     Hold:1500,
     AutoStart:1000
    })
    
    /*]]>*/
    </script>
    
    </body>
    
    </html>
    Last edited by vwphillips; 06-25-2013 at 08:11 AM.
    Vic

    God loves you and will never love you less.

    http://www.vicsjavascripts.org/Home.htm
    If my post has been useful please donate to http://www.operationsmile.org.uk/

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