var ok = false;
if(document.images){
ok = true;

VeganDoctor_over=new Image(252, 63);
VeganDoctor_out=new Image(252, 63);
VeganDoctor_over.src="/images/VeganDoctorButton2.jpg";
VeganDoctor_out.src="/images/VeganDoctorButton1.jpg";

MTVCommercial_over= new Image(252, 63);
MTVCommercial_out=new Image(252, 63);
MTVCommercial_over.src="/images/MTVCommercialButton2.jpg";
MTVCommercial_out.src="/images/MTVCommercialButton1.jpg";



PromotingVeg_over= new Image(252, 63);
PromotingVeg_out=new Image(252, 63);
PromotingVeg_over.src="/images/PromotingVegButton2.jpg";
PromotingVeg_out.src="/images/PromotingVegButton1.jpg";

HiddenCostEggs_over= new Image(252, 63);
HiddenCostEggs_out=new Image(252, 63);
HiddenCostEggs_over.src="/images/HiddenCostEggsButton2.jpg";
HiddenCostEggs_out.src="/images/HiddenCostEggsButton1.jpg";



}

function menu_over(imageName)
{
if(ok)
alert('test');
document[imageName].src = eval(imageName+"_over.src");

}

function menu_out(imageName){
   if(ok)
document[imageName].src = eval(imageName+"_out.src");

}