Calling java script from html to flash for swapping bg image

Hi,
I want to swap images throught javascript. It’s working.
but my problem is I want to call that function from flash on press for my button
this is the code I have used in html

[color=blue]<script language=“JavaScript1.1”>
function swp(id)
{ alert(“hi”);
if (id==“img1”){
document.getElementById(“img1”).src = “images/02.jpg”;
document.getElementById(“img1”).id = “img2”;
}
else
{
document.getElementById(“img2”).src = “images/01.jpg”;
document.getElementById(“img2”).id = “img1”;
}
}
</script>[/color]
[color=#0000ff][/color]
[color=black]this is the code I have used in flash in my button but it’s not working[/color]

[color=blue]on (release) {
getURL(“JavaScript:swp(id)”);
}[/color]
[color=#0000ff][/color]
any one can help me please