function newImage(arg) {
rslt = new Image();
rslt.src = arg;
return rslt;
}

function bOver(image) {
document[image].src = eval(image +"_over.src");
}

function bOut(image) {
document[image].src = eval(image +"_out.src");
}

b1_out = newImage('/images/homebtn.png');
b1_over = newImage('/images/homebtnover.png');
b2_out = newImage('/images/dblgbtn.png');
b2_over = newImage('/images/dblgbtnover.png');
b3_out = newImage('/images/singlegbtn.png');
b3_over = newImage('/images/singlegbtnover.png');
b4_out = newImage('/images/fencebtn.png');
b4_over = newImage('/images/fencebtnover.png');
b5_out = newImage('/images/walkingbtn.png');
b5_over = newImage('/images/walkingbtnover.png');
b6_out = newImage('/images/custombtn.png');
b6_over = newImage('/images/custombtnover.png');
b7_out = newImage('/images/contactbtn.png');
b7_over = newImage('/images/contactbtnover.png');