/*
JavaScript Bible, Fourth Edition
by Danny Goodman
John Wiley & Sons CopyRight 2001
*/
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function setBg(URL) {
document.getElementById("bgExpo").style.backgroundImage = "url(" + URL + ")"
}
</SCRIPT>
</HEAD>
<BODY>
<H1>Layer Backgrounds (W3C)</H1>
<HR>
<DIV ID="buttons" STYLE="position:absolute; top:100">
<FORM>
<INPUT TYPE="button" VALUE="The Usual" onClick="setBg('http://www.java2s.com/style/logo.png')"><BR>
<INPUT TYPE="button" VALUE="A Big One" onClick="setBg('http://www.java2s.com/style/logoRed.png')"><BR>
<INPUT TYPE="button" VALUE="Not So Usual" onClick="setBg('wh86.gif')"><BR>
<INPUT TYPE="button" VALUE="Decidedly Unusual" onClick="setBg('sb23.gif')"><BR>
<INPUT TYPE="button" VALUE="Quick as..." onClick="setBg('lightnin.gif')"><P>
<INPUT TYPE="button" VALUE="Remove Image" onClick="setBg(null)"><BR>
</FORM>
</DIV>
<DIV ID="bgExpo" STYLE="position:absolute; top:100; left:250; width:300; height:260; background-color:gray" >
<SPAN STYLE="font-weight:bold; color:white">Some text, which may or may not read
well with the various backgrounds.</SPAN>
</DIV>
</BODY>
</HTML>
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