[SOLVED] Image script problem

philsando · October 4th, 2007, 09:15 AM

The script is for displaying random images:

HTML Code:

<script language="JavaScript" type="text/javascript"><!--
thisPage = "home";
onload_hook = onLoadSetUp
function errHandl(a,b,c) {
    if (showErr) return false; 
    else return true;
}
//self.onerror = errHandl;
if (!document.images) {
    alert("Your browser does not support image\n" +
    "manipulation by JavaScript.  [Browser\n" +
    "software may be an obsolete version]\n" +
    "The slide show will not be visible.");
}
var slideTotal=54; advAfter=20000;
var showErr=false, sourceNo=0, targetNo=0; hotSlide=0;
var slidesNotStarted=true;
var targetMsg = new Array("message zero", "-", "-", "-", "-", "-", "-");
var targetAuth = new Array("author zero", "-", "-", "-", "-", "-", "-");
var targetTitl = new Array("title zero", "-", "-", "-", "-", "-", "-");
var sourceMsg = new Array("Scanning EM of parasite's cercarial stage [Prof Lewis, Ecol Evol Behav]", "Warbler: Acrocephalus arundinaceus [Prof Catchpole, Ecol Evol Behav]", "Cowpea weevil: Callosobruchus maculatus [Dr Credland, Ecol Evol Behav]", "Cercarial stage of fish liver fluke [Prof Lewis, Ecol Evol Behav]", "Recombinant dystrophin in mdx muscle [Prof Dickson, Biomed Sci]", "Cells in culture", "Arabidopsis thaliana", "Arabidopsis thaliana", "Embryos of amphipod: Gammarus duebeni [Dr Morritt, Ecol Evol Behav]", "Fluorescent protein targeting in stomatal cells [Dr Lopez-Juez, Plant Mol Sci]", "Skeletal muscle, target for gene therapy [Prof Dickson, Biomed Sci]", "Base of antenna: Callosobruchus maculatus [Dr Credland, Ecol Evol Behav]", "Sporulating Bacillus subtilis [Dr Cutting, Biomed Sci]", "Ovigerous beachflea: Orchestia gammarellus [Dr Morritt, Ecol Evol Behav]", "Lycopersicon esculentum: tomatoes with beta-carotene [Prof Bramley, Plant Mol Sci]", "Chromosome tangling checkpoint [Plant Mol Sci]", "Marine mollusc [Dr Morritt, Ecol Evol Behav]", "Dormouse: nocturnal forager [Dr Bright, Ecol Evol Behav]", "Daphnia: the water flea", "Fieldwork in undergraduate ecology course", "Hedgehog: nocturnal predator", "Petal epidermis: scanning EM [Dr Ford, Plant Mol Sci]", "Transmission electron micrograph [Dr Andrews, EM Unit]", "From undergraduate entomology course", "From undergraduate genetics course", "Acrocephalus schoenobaenus: female choice and DNA analysis of paternity [Prof Catchpole, Ecol Evol Behav]", "Brain neuron [Dr Empson, Biomed Sci]", "Entamoeba histolytica [Dr Tovar, Biomed Sci]", "Echinoderm: Asterias rubens [Ecol Evol Behav]", "Pelagic cichlid: Rhamphochromis brevis [Dr Shaw, Ecol Evol Behav]", "Cuttlefish: Sepia officinalis [Dr Shaw, Ecol Evol Behav]", "Adenoviral gene therapy vectors [Prof Dickson, Biomed Sci]", "Mormyrid fish: Gnathonemus [Prof Lewis, Ecol Evol Behav]", "Frost: mechanisms of plant tolerance", "Peroxidase enzyme structure [Prof Bolwell, Plant Mol Sci]", "Acrocephalus schoenobaenus: sonogram [Prof Catchpole, Ecol Evol Behav]", "Lycopene: antioxidant pigment of tomato [Prof Bramley, Plant Mol Sci]", "Computer model of adenoviral gene therapy vector  [Prof Dickson, Biomed Sci]", "Inspecting carotenoid production in tomatoes [Prof Bramley, Plant Mol Sci]", "Video microscopy in undergraduate practical", "Thermal monitoring of limpet in nature [Dr Morritt, Ecol Evol Behav]", "Stripes of gene expression in brain tissue [Dr Beesley, Biomed Sci]", "Synapses [Dr Beesley, Biomed Sci]", "Green fluorescent reporter protein in transfected neuron [Dr Beesley, Biomed Sci]", "Green fluorescent tagging of frost tolerance protein", "Microarray analysis of floral senescence [Dr Stead, Plant Mol Sci]", "Lipid globules in Blakeslea mycelium [Prof Bramley, Plant Mol Sci]", " ", " ", "BCOP [Prof Duden, Biomed Sci]", "Connexin [Prof Duden, Biomed Sci]", "COPI vesicle [Prof Duden, Biomed Sci]", "FRET [Prof Duden, Biomed Sci]", "Golgi [Prof Duden, Biomed Sci]");
var sourceAuth = new Array("Lewis", "Catchpole", "Credland", "Lewis", "Dickson", "-", "-", "-", "Morritt", "Lopez-Juez", "Dickson", "Credland", "Cutting", "Morritt", "Bramley", "Bogre", "Morritt", "Bright", "-", "-", "-", "Ford", "Andrews", "-", "-", "Catchpole", "Empson", "Tovar", "-", "Shaw", "Shaw", "Dickson", "Lewis", "Warren", "Bolwell", "Catchpole", "Bramley", "Dickson", "Bramley", "-", "Morritt", "Beesley", "Beesley", "Beesley", "-", "Stead", "Bramley", "-", "-", "Duden", "Duden", "Duden", "Duden", "Duden");
var sourceTitl = new Array("Prof.", "Prof.", "Dr.", "Prof.", "Prof.", "-", "-", "-", "Dr.", "Dr.", "Prof.", "Dr.", "Dr.", "Dr.", "Prof.", "Dr.", "Dr.", "Dr.", "-", "-", "-", "Dr.", "Dr.", "-", "-", "Prof.", "Dr.", "Dr.", "-", "Dr.", "Dr.", "Prof.", "Prof.", "-", "Prof.", "Prof.", "Prof.", "Prof.", "Prof.", "-", "Dr.", "Dr.", "Dr.", "Dr.", "Dr.", "Dr.", "Prof.", "-", "-", "Prof.", "Prof.", "Prof.", "Prof.", "Prof.");
// last one is currently, zp53.gif (54 in total)
    a = new Date(); 
    b = (a.getTime())/slideTotal;
    c = slideTotal*(b-Math.floor(b)+0.001); d = Math.floor(c);
    if (d>slideTotal) d=slideTotal; 
    sourceNo=d;
    // sourceNo can be from 0 to (initial slideTotal-1)
    slideTotal-=1;
    b = (a.getTime())/slideTotal;
    c = slideTotal*(b-Math.floor(b)+0.001); d = 1+Math.floor(c);
    if (d>slideTotal) d=slideTotal; 
    sourceAdv=d;
//     sourceAdv can be from 1 to (initial slideTotal-1)
//
    cW = new Date ();
    cW.setMonth(7);
// Jan=0, Dec=11
    cW.setDate(16);
//    if (a.getTime() > cW.getTime()) top.location = "indexclsp.html";
//
function loadNextSlide() {
    if (document.images) {
        sourceNo+=sourceAdv;
        if (sourceNo>slideTotal) sourceNo-=(slideTotal+1);
        targetNo+=1;
        if (targetNo>5) targetNo=1;
        sourceName = "_gifs/zp"+sourceNo+".gif";
        targetName="target"+targetNo;
        targetMsg[targetNo]=sourceMsg[sourceNo];
        targetAuth[targetNo]=sourceAuth[sourceNo];
        targetTitl[targetNo]=sourceTitl[sourceNo];
        swapIm(targetName,sourceName);
        window.status=" ";
    }
}
function slideTimer() {
    if (hotSlide>0) {
        setTimeout('slideTimer()',200);
        return;
    }
   loadNextSlide();
    slidesNotStarted=false;
    setTimeout('slideTimer()',advAfter);
}
//
function initialSlideLoad() {
    for (i=0;i<5;i++) {
        loadNextSlide();
    }
}
//
function swapIm(targetName,sourceName) {
    if (document.images) {
        document.images[targetName].src = sourceName;
}    }
//
function showSlideInfo(pointedAt) {
    hotSlide=pointedAt;
    window.status=targetMsg[hotSlide];
    selAuth=targetAuth[pointedAt];
}
//
function linkQuery(pointedAt) {
    selAuth=targetTitl[pointedAt]+" "+targetAuth[pointedAt];
    msg="Do you want to go to the web page describing research"+
        "  by "+selAuth+", from which the selected photograph"+
         "  is taken?  (The page will open in a new window.)";
    if (selAuth.length>5) {
        if (confirm(msg)) {
            top.location="AcademicStaff/"+targetAuth[pointedAt]; } }
}
//
function onLoadSetUp() {
initialSlideLoad();
setTimeout('slideTimer()',15000);
}
//
var jsversion = 1.0
// --></SCRIPT>

Then on the body tag there is a call to:

HTML Code:

<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" 
      onLoad="
     function blockError (){return true};
     window.onerror = blockError;
     grey_out(thisPage); 
     if (onload_hook) {onload_hook ()}"
>

In the page I am developing I have no access to the <body> tag, so cannot enter this code due to it being locked by the template system.

Does anyone know of a way I can get this script to work without adding the code to the body tag?

Any help appreciated

Thanks a lot

Rakuli · October 4th, 2007, 09:41 AM

Hi philsando, welcome to Webforumz

If I can just clarify..

You want to have something happen onload of the page?

You don't need access to the <body> tag for that you can use

Code:

function blockError() {return true;}
window.onerror = blockError;

window.onload = function () 
{ 
    grey_out (thisPage); 
    if (onload_hook) 
    onload_hook();
};

You can add that to your main script. Is this what you mean?

Cheers,

philsando · October 4th, 2007, 09:47 AM

Yep I basically want the script to work as normal, without needing to access the body tag.

Thanks for the reply, where about would I insert that code?

Thanks

Rakuli · October 4th, 2007, 09:50 AM

place that as the very first thing in your script.

So if your main script is in the <head>tag, place it right underneath the <script> tag.

Cheers,

philsando · October 4th, 2007, 09:56 AM

So now I have:

HTML Code:

<script language="JavaScript" type="text/javascript">
[b] <!--
function blockError() {return true;}
window.onerror = blockError;

window.onload = function () 
{ 
    grey_out (thisPage); 
    if (onload_hook) 
    onload_hook();
};[/b] 
thisPage = "home";
onload_hook = onLoadSetUp
function errHandl(a,b,c) {
    if (showErr) return false; 
    else return true;
}
//self.onerror = errHandl;
if (!document.images) {
    alert("Your browser does not support image\n" +
    "manipulation by JavaScript.  [Browser\n" +
    "software may be an obsolete version]\n" +
    "The slide show will not be visible.");
}
var slideTotal=54; advAfter=20000;
var showErr=false, sourceNo=0, targetNo=0; hotSlide=0;
var slidesNotStarted=true;
var targetMsg = new Array("message zero", "-", "-", "-", "-", "-", "-");
var targetAuth = new Array("author zero", "-", "-", "-", "-", "-", "-");
var targetTitl = new Array("title zero", "-", "-", "-", "-", "-", "-");
var sourceMsg = new Array("Scanning EM of parasite's cercarial stage [Prof Lewis, Ecol Evol Behav]", "Warbler: Acrocephalus arundinaceus [Prof Catchpole, Ecol Evol Behav]", "Cowpea weevil: Callosobruchus maculatus [Dr Credland, Ecol Evol Behav]", "Cercarial stage of fish liver fluke [Prof Lewis, Ecol Evol Behav]", "Recombinant dystrophin in mdx muscle [Prof Dickson, Biomed Sci]", "Cells in culture", "Arabidopsis thaliana", "Arabidopsis thaliana", "Embryos of amphipod: Gammarus duebeni [Dr Morritt, Ecol Evol Behav]", "Fluorescent protein targeting in stomatal cells [Dr Lopez-Juez, Plant Mol Sci]", "Skeletal muscle, target for gene therapy [Prof Dickson, Biomed Sci]", "Base of antenna: Callosobruchus maculatus [Dr Credland, Ecol Evol Behav]", "Sporulating Bacillus subtilis [Dr Cutting, Biomed Sci]", "Ovigerous beachflea: Orchestia gammarellus [Dr Morritt, Ecol Evol Behav]", "Lycopersicon esculentum: tomatoes with beta-carotene [Prof Bramley, Plant Mol Sci]", "Chromosome tangling checkpoint [Plant Mol Sci]", "Marine mollusc [Dr Morritt, Ecol Evol Behav]", "Dormouse: nocturnal forager [Dr Bright, Ecol Evol Behav]", "Daphnia: the water flea", "Fieldwork in undergraduate ecology course", "Hedgehog: nocturnal predator", "Petal epidermis: scanning EM [Dr Ford, Plant Mol Sci]", "Transmission electron micrograph [Dr Andrews, EM Unit]", "From undergraduate entomology course", "From undergraduate genetics course", "Acrocephalus schoenobaenus: female choice and DNA analysis of paternity [Prof Catchpole, Ecol Evol Behav]", "Brain neuron [Dr Empson, Biomed Sci]", "Entamoeba histolytica [Dr Tovar, Biomed Sci]", "Echinoderm: Asterias rubens [Ecol Evol Behav]", "Pelagic cichlid: Rhamphochromis brevis [Dr Shaw, Ecol Evol Behav]", "Cuttlefish: Sepia officinalis [Dr Shaw, Ecol Evol Behav]", "Adenoviral gene therapy vectors [Prof Dickson, Biomed Sci]", "Mormyrid fish: Gnathonemus [Prof Lewis, Ecol Evol Behav]", "Frost: mechanisms of plant tolerance", "Peroxidase enzyme structure [Prof Bolwell, Plant Mol Sci]", "Acrocephalus schoenobaenus: sonogram [Prof Catchpole, Ecol Evol Behav]", "Lycopene: antioxidant pigment of tomato [Prof Bramley, Plant Mol Sci]", "Computer model of adenoviral gene therapy vector  [Prof Dickson, Biomed Sci]", "Inspecting carotenoid production in tomatoes [Prof Bramley, Plant Mol Sci]", "Video microscopy in undergraduate practical", "Thermal monitoring of limpet in nature [Dr Morritt, Ecol Evol Behav]", "Stripes of gene expression in brain tissue [Dr Beesley, Biomed Sci]", "Synapses [Dr Beesley, Biomed Sci]", "Green fluorescent reporter protein in transfected neuron [Dr Beesley, Biomed Sci]", "Green fluorescent tagging of frost tolerance protein", "Microarray analysis of floral senescence [Dr Stead, Plant Mol Sci]", "Lipid globules in Blakeslea mycelium [Prof Bramley, Plant Mol Sci]", " ", " ", "BCOP [Prof Duden, Biomed Sci]", "Connexin [Prof Duden, Biomed Sci]", "COPI vesicle [Prof Duden, Biomed Sci]", "FRET [Prof Duden, Biomed Sci]", "Golgi [Prof Duden, Biomed Sci]");
var sourceAuth = new Array("Lewis", "Catchpole", "Credland", "Lewis", "Dickson", "-", "-", "-", "Morritt", "Lopez-Juez", "Dickson", "Credland", "Cutting", "Morritt", "Bramley", "Bogre", "Morritt", "Bright", "-", "-", "-", "Ford", "Andrews", "-", "-", "Catchpole", "Empson", "Tovar", "-", "Shaw", "Shaw", "Dickson", "Lewis", "Warren", "Bolwell", "Catchpole", "Bramley", "Dickson", "Bramley", "-", "Morritt", "Beesley", "Beesley", "Beesley", "-", "Stead", "Bramley", "-", "-", "Duden", "Duden", "Duden", "Duden", "Duden");
var sourceTitl = new Array("Prof.", "Prof.", "Dr.", "Prof.", "Prof.", "-", "-", "-", "Dr.", "Dr.", "Prof.", "Dr.", "Dr.", "Dr.", "Prof.", "Dr.", "Dr.", "Dr.", "-", "-", "-", "Dr.", "Dr.", "-", "-", "Prof.", "Dr.", "Dr.", "-", "Dr.", "Dr.", "Prof.", "Prof.", "-", "Prof.", "Prof.", "Prof.", "Prof.", "Prof.", "-", "Dr.", "Dr.", "Dr.", "Dr.", "Dr.", "Dr.", "Prof.", "-", "-", "Prof.", "Prof.", "Prof.", "Prof.", "Prof.");
// last one is currently, zp53.gif (54 in total)
    a = new Date(); 
    b = (a.getTime())/slideTotal;
    c = slideTotal*(b-Math.floor(b)+0.001); d = Math.floor(c);
    if (d>slideTotal) d=slideTotal; 
    sourceNo=d;
    // sourceNo can be from 0 to (initial slideTotal-1)
    slideTotal-=1;
    b = (a.getTime())/slideTotal;
    c = slideTotal*(b-Math.floor(b)+0.001); d = 1+Math.floor(c);
    if (d>slideTotal) d=slideTotal; 
    sourceAdv=d;
//     sourceAdv can be from 1 to (initial slideTotal-1)
//
    cW = new Date ();
    cW.setMonth(7);
// Jan=0, Dec=11
    cW.setDate(16);
//    if (a.getTime() > cW.getTime()) top.location = "indexclsp.html";
//
function loadNextSlide() {
    if (document.images) {
        sourceNo+=sourceAdv;
        if (sourceNo>slideTotal) sourceNo-=(slideTotal+1);
        targetNo+=1;
        if (targetNo>5) targetNo=1;
        sourceName = "_gifs/zp"+sourceNo+".gif";
        targetName="target"+targetNo;
        targetMsg[targetNo]=sourceMsg[sourceNo];
        targetAuth[targetNo]=sourceAuth[sourceNo];
        targetTitl[targetNo]=sourceTitl[sourceNo];
        swapIm(targetName,sourceName);
        window.status=" ";
    }
}
function slideTimer() {
    if (hotSlide>0) {
        setTimeout('slideTimer()',200);
        return;
    }
   loadNextSlide();
    slidesNotStarted=false;
    setTimeout('slideTimer()',advAfter);
}
//
function initialSlideLoad() {
    for (i=0;i<5;i++) {
        loadNextSlide();
    }
}
//
function swapIm(targetName,sourceName) {
    if (document.images) {
        document.images[targetName].src = sourceName;
}    }
//
function showSlideInfo(pointedAt) {
    hotSlide=pointedAt;
    window.status=targetMsg[hotSlide];
    selAuth=targetAuth[pointedAt];
}
//
function linkQuery(pointedAt) {
    selAuth=targetTitl[pointedAt]+" "+targetAuth[pointedAt];
    msg="Do you want to go to the web page describing research"+
        "  by "+selAuth+", from which the selected photograph"+
         "  is taken?  (The page will open in a new window.)";
    if (selAuth.length>5) {
        if (confirm(msg)) {
            top.location="AcademicStaff/"+targetAuth[pointedAt]; } }
}
//
function onLoadSetUp() {
initialSlideLoad();
setTimeout('slideTimer()',15000);
}
//
var jsversion = 1.0
// --></SCRIPT>

Is that correct? It doesnt seem to have made a difference.

Thanks again

philsando · October 4th, 2007, 10:58 AM

This thread can be closed. Problem now solved thanks