var soundfile="media/sound/main.wav" //path to sound file, or pass in filename directly into playsound()

function playsound(soundfile){
if (document.all && document.getElementById){
document.getElementById("soundeffect").src="" //reset first in case of problems
document.getElementById("soundeffect").src=soundfile
}
}

function bindsound(tag, soundfile, masterElement){
if (!window.event) return
var source=event.srcElement
while (source!=masterElement && source.tagName!="HTML"){
if (source.tagName==tag.toUpperCase()){
playsound(soundfile)
break
}
source=source.parentElement
}
}

isamap = new Object();
isamap[0] = "_df"
isamap[1] = "_ov"
isamap[2] = "_ot"
isamap[3] = "_dn"

function isimgact(id, act)
{
	if(document.images) document.images[id].src = eval( "isimages." + id + isamap[act] + ".src");
}

if (document.images) { // ensure browser can do JavaScript rollovers.
isimages = new Object();
isimages.d1_df = new Image();
isimages.d1_df.src = "images/webdesignag_net.gif";

isimages.d1_ov = new Image();
isimages.d1_ov.src = "images/webdesignag_netov.gif";

}