[Tutor] Python in HTML

[Orri Ganel]

Thanks to all who helped.  It looks like I figured out what the problem 
was, with the use of mozilla's DOM inspector, js debugger, and JSIDE (a 
javascript ide) that I downloaded after googling "javascript ide" (it 
appears to be quite good).  In any case, the whole issue was checking 
whether or not playable was empty.  I used a single = instead of 2:

<object id=darkplayer 
codeBase=http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701 
type=application/x-oleobject height=0 standby="Loading Microsoft Windows 
Media Player components..." width=0 
classid=CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95>
 <PARAM NAME VALUE>
 <PARAM NAME="ShowControls" VALUE="0">
 <PARAM NAME="ShowStatusBar" VALUE="0">
 <PARAM NAME="ShowDisplay" VALUE="0">
 <PARAM NAME="DefaultFrame" VALUE="Slide">
 <PARAM NAME="Autostart" VALUE="1">
 <PARAM NAME="Loop" VALUE="False">
</object>
<form name=form>
 <p style="text-align: center">
 <select style="FONT-SIZE: 8pt; BACKGROUND:#FFFFFF; WIDTH: 302; COLOR: 
#00000; font-face: verdana;" name=playlist size=1>
 <option value="0">removed</option>
 
 
 </select><br>
 <input TYPE="BUTTON" NAME="darkplay" VALUE="we're at a place" 
OnClick="play(document.forms['form'].playlist);playstate=0;">
 <input TYPE="BUTTON" NAME="darkpause" VALUE="called vertigo" 
OnClick="document.darkplayer.pause(); playstate=1;">

 <input TYPE="BUTTON" NAME="darkstop" VALUE="contestar" 
OnClick="document.darkplayer.stop(); playstate=2;">
 <input TYPE="BUTTON" NAME="random" VALUE="and i feel" 
OnClick="randsong();play(document.forms['form'].playlist);">
</p></form>


<script language="JavaScript">
<!--
var playstate = 0;
shuffle = 1;  // set to 0 to always play first song in list
              // set to 1 to randomly choose the first song to play
              // www.xanga.com/singing_duck
              // unlimited songs, just copy and paste the song line and 
change the number
songs=new Array();
songs[0]="removed"

playable = new Array();
for (i = 0; i < songs.length; i++) {
    playable[i] = songs[i];
}

function index(ar, text) {
    for (i = 0; i < ar.length; i++) {
        if (ar[i] == text) {
            return i;
        }
    }
    return -1;
}
function randsong() {
    rnd.today=new Date();
    rnd.seed=rnd.today.getTime();
    function rnd() {
        rnd.seed = (rnd.seed*9301+49297) % 233280;
        return rnd.seed/(233280.0);
    };
    function rand(number) {
        return Math.ceil(rnd()*number);
    };
    if (playable.length *=*= 0) { *// here's where the issue was. since 
i assigned*
        for (i = 0; i < songs.length; i++) { *// playable.length to 0, 
there were no songs in*
            playable[i] = songs[i]; *//* *it, resulting in index() 
returning -1, which threw off ...*
        }
    }
    var randsg = rand(playable.length);
    document.darkplayer.FileName = playable[randsg];
    document.darkplayer.scr = playable[randsg];
    
document.forms['form'].playlist.options[index(songs,playable[randsg])].selected 
= true; *// ...this line,
*    playable.splice(randsg,1); *// **which expects a valid index 
(non-negative)*
};
if (shuffle == 1) {
    randsong();
}
function play(list) {
    if (playstate == 1 && songs[list.options[list.selectedIndex].value] 
== document.darkplayer.FileName) {
        document.darkplayer.Play();
    } else {
        var snum = list.options[list.selectedIndex].value
        document.darkplayer.FileName = songs[snum];
        document.darkplayer.scr = songs[snum];
    }
    playstate = 1;
};
//-->
  </script>

-- 
Email: singingxduck AT gmail DOT com
AIM: singingxduck
Programming Python for the fun of it.