Javscript embedding problem

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I realize this isn't exactly a PHP problem, but I'm hoping someone here
can see whatever it is I'm evidently missing.  The script works just
fine in normal html, but refuses to run when I attempt to embed this in
one of my php pages.  Which leads me to believe I've made a formatting
mistake of some type.

I'm trying to call the javascript in this portion of code

//INCLUSION OF COUNTDOWN TIMER
	."<tr><td colspan=2><SCRIPT language='JavaScript'
SRC='countdown.js'></SCRIPT><center><script
type='text/javascript'>countdown_clock(05, 11, 19, 08, 00,
1);</script></center></td></tr>\n"
	."</table>\n"


countdown.js looks like this:


<script type=\"text/javascript\">
function countdown_clock(year, month, day, hour, minute, format)
         {
         //I chose a div as the container for the timer, but
         //it can be an input tag inside a form, or anything
         //who's displayed content can be changed through
         //client-side scripting.
         html_code = '<div id=\"countdown\"></div>';

         document.write(html_code);

         countdown(year, month, day, hour, minute, format);
         }

function countdown(year, month, day, hour, minute, format)
         {
         Today = new Date();
         Todays_Year = Today.getYear() - 2000;
         Todays_Month = Today.getMonth() + 1;

         //Convert both today's date and the target date into
miliseconds.
         Todays_Date = (new Date(Todays_Year, Todays_Month,
Today.getDate(),
                                 Today.getHours(), Today.getMinutes(),
Today.getSeconds())).getTime();
         Target_Date = (new Date(year, month, day, hour, minute,
00)).getTime();

         //Find their difference, and convert that into seconds.

         Time_Left = Math.round((Target_Date - Todays_Date) / 1000);

         if(Time_Left < 0)
            Time_Left = 0;

         switch(format)
               {
               case 0:
                    //The simplest way to display the time left.
                    document.all.countdown.innerHTML = Time_Left + '
seconds';
                    break;
               case 1:
                    //More datailed.
                    days = Math.floor(Time_Left / (60 * 60 * 24));
                    Time_Left %= (60 * 60 * 24);
                    hours = Math.floor(Time_Left / (60 * 60));
                    Time_Left %= (60 * 60);
                    minutes = Math.floor(Time_Left / 60);
                    Time_Left %= 60;
                    seconds = Time_Left;

                    dps = 's'; hps = 's'; mps = 's'; sps = 's';
                    //ps is short for plural suffix.
                    if(days == 1) dps ='';
                    if(hours == 1) hps ='';
                    if(minutes == 1) mps ='';
                    if(seconds == 1) sps ='';

                    document.all.countdown.innerHTML = days + ' day' +
dps + ' ';
                    document.all.countdown.innerHTML += hours + ' hour'
+ hps + ' ';
                    document.all.countdown.innerHTML += minutes + '
minute' + mps + ' and ';
                    document.all.countdown.innerHTML += seconds + '
second' + sps;
                    break;
               default:
                    document.all.countdown.innerHTML = Time_Left + '
seconds';
               }

         //Recursive call, keeps the clock ticking.
         setTimeout('countdown(' + year + ',' + month + ',' + day + ','
+ hour + ',' + minute + ',' + format + ');', 1000);
         }
</script>	

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