ho in cluso un file in una pagina ASP per visualizzare random delle immagini...ma non funziona



<body OnLoad="showWindow()">

i path nel file JS si devono dare da file o da root ??

il file inc_random_img.js

codice:
<script language="JavaScript">
<!--

function MM_jumpMenu(targ,selObj,restore){ //v3.0

	if(selObj.selectedIndex != 0)

  		{eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");}

  if (restore) selObj.selectedIndex=0;

}



var rand1 = 0;

var useRand = 0;



images = new Array;

images[1] = new Image();

images[1].src = "../wireless/images/img2.jpg";

images[2] = new Image();

images[2].src = "../wireless/images/img4.jpg";

images[3] = new Image();

images[3].src = "../wireless/images/img5.jpg";

function swapPic() {

var imgnum = images.length - 1;

do {

var randnum = Math.random();

rand1 = Math.round((imgnum - 1) * randnum) + 1;

} while (rand1 == useRand);

useRand = rand1;

document.randimg.src = images[useRand].src;

}

//-->

</script>