var imgLoaded=0
var param='images/'
var v=parseInt(navigator.appVersion)

if (document.images) {
I1On=new Image();
I1Off=new Image();
I1On.src=param+"butaboutp.gif"
I1Off.src=param+"butabout.gif"
I2On=new Image();
I2Off=new Image();
I2On.src=param+"butclientp.gif"
I2Off.src=param+"butclient.gif"
I3On=new Image();
I3Off=new Image();
I3On.src=param+"butconsp.gif"
I3Off.src=param+"butcons.gif"
I4On=new Image();
I4Off=new Image();
I4On.src=param+"butcontp.gif"
I4Off.src=param+"butcont.gif"
I5On=new Image();
I5Off=new Image();
I5On.src=param+"butnewsp.gif"
I5Off.src=param+"butnews.gif"
I6On=new Image();
I6Off=new Image();
I6On.src=param+"butsoprp.gif"
I6Off.src=param+"butsopr.gif"
I7On=new Image();
I7Off=new Image();
I7On.src=param+"butvoorp.gif"
I7Off.src=param+"butvoor.gif"


imgLoaded=1;
}


function Over(Img) {
if (3<=v) {if(imgLoaded==0) return;
document[Img].src=eval(Img+"On.src");
}
}
function Out(Img) {
if (3<=v) {
if(imgLoaded==0) return;
document[Img].src=eval(Img+"Off.src");
}
}