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  1. #1
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    Defining an ASP varibale in javascript

    Hi,
    I am trying to define a variable for use in ASP code within a javascript.

    This is what I have but it is not working.

    if (minVersion) {
    document.write("<%gotflash=1%>");
    } else {
    document.write("<%gotflash=0%>");
    }

    Any ideas?

  • #2
    Senior Coder
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    What is your code supposed to achieve?

    Server-side code is processed before client-side script.
    If you want to set an ASP variable you will have to submit the page.

  • #3
    SSJ
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    Post your full code snippet.

  • #4
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    I am trying to detect the presence of the flash plugin with a minimum version of 7. I have used a javascript to detect the version that is installed. Here is my code.. Thanks for the help

    JS in HEAD tags... (Some useless bits of code in here that I haven't taken out yet so it's a bit long at the moment)

    <script language="JavaScript" type="text/javascript">

    // Flash Player Version Detection - Rev 1.5
    // Detect Client Browser type
    // Copyright(c) 2005-2006 Adobe Macromedia Software, LLC. All rights reserved.
    var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
    var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
    var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

    function ControlVersion()
    {
    var version;
    var axo;
    var e;

    // NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

    try {
    // version will be set for 7.X or greater players
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
    version = axo.GetVariable("$version");
    } catch (e) {
    }

    if (!version)
    {
    try {
    // version will be set for 6.X players only
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");

    // installed player is some revision of 6.0
    // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
    // so we have to be careful.

    // default to the first public version
    version = "WIN 6,0,21,0";

    // throws if AllowScripAccess does not exist (introduced in 6.0r47)
    axo.AllowScriptAccess = "always";

    // safe to call for 6.0r47 or greater
    version = axo.GetVariable("$version");

    } catch (e) {
    }
    }

    if (!version)
    {
    try {
    // version will be set for 4.X or 5.X player
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
    version = axo.GetVariable("$version");
    } catch (e) {
    }
    }

    if (!version)
    {
    try {
    // version will be set for 3.X player
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
    version = "WIN 3,0,18,0";
    } catch (e) {
    }
    }

    if (!version)
    {
    try {
    // version will be set for 2.X player
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
    version = "WIN 2,0,0,11";
    } catch (e) {
    version = -1;
    }
    }

    return version;
    }

    // JavaScript helper required to detect Flash Player PlugIn version information
    function GetSwfVer(){
    // NS/Opera version >= 3 check for Flash plugin in plugin array
    var flashVer = -1;

    if (navigator.plugins != null && navigator.plugins.length > 0) {
    if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
    var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
    var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
    var descArray = flashDescription.split(" ");
    var tempArrayMajor = descArray[2].split(".");
    var versionMajor = tempArrayMajor[0];
    var versionMinor = tempArrayMajor[1];
    if ( descArray[3] != "" ) {
    tempArrayMinor = descArray[3].split("r");
    } else {
    tempArrayMinor = descArray[4].split("r");
    }
    var versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
    var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
    }
    }
    // MSN/WebTV 2.6 supports Flash 4
    else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
    // WebTV 2.5 supports Flash 3
    else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
    // older WebTV supports Flash 2
    else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
    else if ( isIE && isWin && !isOpera ) {
    flashVer = ControlVersion();
    }
    return flashVer;
    }

    // When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
    function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
    {
    versionStr = GetSwfVer();
    if (versionStr == -1 ) {
    return false;
    } else if (versionStr != 0) {
    if(isIE && isWin && !isOpera) {
    // Given "WIN 2,0,0,11"
    tempArray = versionStr.split(" "); // ["WIN", "2,0,0,11"]
    tempString = tempArray[1]; // "2,0,0,11"
    versionArray = tempString.split(","); // ['2', '0', '0', '11']
    } else {
    versionArray = versionStr.split(".");
    }
    var versionMajor = versionArray[0];
    var versionMinor = versionArray[1];
    var versionRevision = versionArray[2];

    // is the major.revision >= requested major.revision AND the minor version >= requested minor
    if (versionMajor > parseFloat(reqMajorVer)) {
    return true;
    } else if (versionMajor == parseFloat(reqMajorVer)) {
    if (versionMinor > parseFloat(reqMinorVer))
    return true;
    else if (versionMinor == parseFloat(reqMinorVer)) {
    if (versionRevision >= parseFloat(reqRevision))
    return true;
    }
    }
    return false;
    }
    }

    function AC_AddExtension(src, ext)
    {
    if (src.indexOf('?') != -1)
    return src.replace(/\?/, ext+'?');
    else
    return src + ext;
    }

    function AC_Generateobj(objAttrs, params, embedAttrs)
    {
    var str = '';
    if (isIE && isWin && !isOpera)
    {
    str += '<object ';
    for (var i in objAttrs)
    str += i + '="' + objAttrs[i] + '" ';
    for (var i in params)
    str += '><param name="' + i + '" value="' + params[i] + '" /> ';
    str += '></object>';
    } else {
    str += '<embed ';
    for (var i in embedAttrs)
    str += i + '="' + embedAttrs[i] + '" ';
    str += '> </embed>';
    }

    document.write(str);
    }

    function AC_FL_RunContent(){
    var ret =
    AC_GetArgs
    ( arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
    , "application/x-shockwave-flash"
    );
    AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
    }

    function AC_GetArgs(args, ext, srcParamName, classid, mimeType){
    var ret = new Object();
    ret.embedAttrs = new Object();
    ret.params = new Object();
    ret.objAttrs = new Object();
    for (var i=0; i < args.length; i=i+2){
    var currArg = args[i].toLowerCase();

    switch (currArg){
    case "classid":
    break;
    case "pluginspage":
    ret.embedAttrs[args[i]] = args[i+1];
    break;
    case "src":
    case "movie":
    args[i+1] = AC_AddExtension(args[i+1], ext);
    ret.embedAttrs["src"] = args[i+1];
    ret.params[srcParamName] = args[i+1];
    break;
    case "onafterupdate":
    case "onbeforeupdate":
    case "onblur":
    case "oncellchange":
    case "onclick":
    case "ondblClick":
    case "ondrag":
    case "ondragend":
    case "ondragenter":
    case "ondragleave":
    case "ondragover":
    case "ondrop":
    case "onfinish":
    case "onfocus":
    case "onhelp":
    case "onmousedown":
    case "onmouseup":
    case "onmouseover":
    case "onmousemove":
    case "onmouseout":
    case "onkeypress":
    case "onkeydown":
    case "onkeyup":
    case "onload":
    case "onlosecapture":
    case "onpropertychange":
    case "onreadystatechange":
    case "onrowsdelete":
    case "onrowenter":
    case "onrowexit":
    case "onrowsinserted":
    case "onstart":
    case "onscroll":
    case "onbeforeeditfocus":
    case "onactivate":
    case "onbeforedeactivate":
    case "ondeactivate":
    case "type":
    case "codebase":
    case "id":
    ret.objAttrs[args[i]] = args[i+1];
    break;
    case "width":
    case "height":
    case "align":
    case "vspace":
    case "hspace":
    case "class":
    case "title":
    case "accesskey":
    case "name":
    case "tabindex":
    ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
    break;
    default:
    ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
    }
    }
    ret.objAttrs["classid"] = classid;
    if (mimeType) ret.embedAttrs["type"] = mimeType;
    return ret;
    }



    </script>


    Code in my BODY tags...

    <script language="JavaScript" type="text/javascript">
    <!--
    var requiredMajorVersion = 7;
    var requiredMinorVersion = 0;
    var requiredRevision = 0;
    var hasReqestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
    if (hasReqestedVersion) {
    document.write("<%gotflash=1%>");
    } else {
    document.write("<%gotflash=0%>");
    }
    // -->
    </script>
    <font size="1" color="#CCCCCC"><%=gotflash%></font><br>
    <%if gotflash=1 then%>

    [EMBED FLASH HERE]

    <%else%>

    [ALTERNATE NON-FLASH CONTENT]

    <%end if%>

  • #5
    SSJ
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    Try Following:

    if (hasReqestedVersion)
    {
    <% gotflash=1 %>
    }
    else
    {
    <% gotflash=0 %>
    }

  • #6
    Supreme Master coder! glenngv's Avatar
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    As degsy said, server-side scripts are processed first before the client-side scripts. They are not executed one after the other. Just stick with Javascript.
    Code:
    if (hasReqestedVersion) {
       document.write('<object ...></object>'); //flash tag
    }
    else {
       document.write('alternate flash content'); //non-flash content
    }
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