make submit button refresh iframe aswell?

Hello,

Here is the javascript i am currently using:

<script type = "text/javascript">

var flag = 0;
function dis() {
document.getElementById("but1").value = "Your files are being uploaded..please wait.";
if (flag == 0) {
flag = 1;
return true;
}
else {return false}
}


</script>


with this:

<input type="submit" id = "but1" readonly value=" Upload File(s) " onclick = "return dis()" />

How would i also make it so it refreshes a page on an iframe below aswell as submit upload, i need it to link to: pleasewait.html, which ive named image loader, so somehow it needs this in it: target="imageloader"

Thanks

BUMP! (ineedthis)