Mega Code Archive
Src Example
<![CDATA[
<html>
<body>
<img id="myImg" src="" alt="" onClick="function1();">
<button onclick="function1();">Click here to load image</button>
<script language="JavaScript">
function function1() {
document.all.myImg.src = "yourimage.gif";
}
</script>
</body>
</html>
]]>