Javascript for onscroll.play(soundobj)

HELLO,
ALL PRAISES TO THE SOUND GODS. BUILDING A WEB SITE LIKE A "CASHREGISTER". THE HOME PAGE HAS TWO IFRAMES, 'DISPLAY' ON TOP AND 'REGISTER' ON BOTTOM. THE MAIN LINKS ON THE LEFT LOAD 'PRODUCT' PAGES INTO 'DISPLAY' AND SHOW UP AS LISTS OF FORMS WITH FIELDSETS. ONCE THE FIELDSET OPTIONS ARE SELECTED AND THE BUTTON IS CLICKED, THE ORDERED PRODUCT IS ADDED TO A TABLE ROW[0] IN 'REGISTER'.
PRODUCT1.HTML HAS TWO EMBEDED SOUNDS IDED 'SOUND1' AND 'SOUND2' THE FIRST FUNCTION EVALSOUND() IS CALLED BY THE ONCLICK="EVALSOUND('SOUND1')" AND WORKS FINE.
THE SECOND FUNCTION EVALSOUND2()
IS CALLED BY WINDOW.ONSCROLL=EVALSOUND2(SOUND2); DOESN'T PLAY THE SOUND.
I'M GUESSING THAT THE ONSCROLL METHOD REQUIRES X,Y OR SOMETHING BEFORE IT ACTUALY WORKS. I DON'T WANT TO USE BGSOUND BECAUSE IT'S IE ONLY.
ANY JAVASCRIPT HELP WOULD BE MORE THAN APPRECIATED.

HEY TASOS,
DON'T KNOW IF ANYBODY HAS READ THIS OTHER THAN YOU. I'M NOT EVEN SURE IF I'M IN THE RIGHT PLACE FOR JAVASCRIPT ADVICE ON PLAYING SOUND.
I FINALY GOT THE SECOND SOUND TO PLAY AS WINDOW.ONSCROLL=EVALSOUND2;
WHICH WAS THE CORRECT JSCRIPT SYNTAX FOR THE ONSCROLL FUNCTION CALL BUT THE SOUND FILE WAS 4 OR FIVE SECONDS OF TICKING AND IT TURNS OUT THAT I HAVE TO USE A WINDOW.CLIENT HEIGHT LOOP TO GET IT TO PLAY A TICK PER PIXEL OR SO OF THE WINDOW THAT IS BEING SCROLLED. I'VE SEEN A SITE THAT IS SIMILAR AND PLAYS A TICK SOUND FOR EVERY PIXEL OR SO OF THE WINDOW SCROLL ACTION BUT FAILED TO ADD IT TO MY FAVORITES AND CAN NOT SEEM TO FIND IT AGAIN.
MY JAVASCRIPT IS TERRIBLE BUT I'VE PERSISTED THRU 5 YEARS OF JAVASCRIPT TOMBS, MOST READ SEVERAL TIMES AND WON'T BE DETERED BY MY OBVIOUSE DISLEXIA IN SIMPLE MATHMATICAL EQUATIONS. IF I CAN JUST GET THIS LOOP TO WORK THEN THE LAST FIVE YEARS WON'T HAVE BEEN INVAIN.
REGARDS, HEINZ STAPFF