function pasuser(form) {
if  ((form.pass1.value=="petadiscount")||(form.pass1.value=="vegan")){             
location="buy-discount.html" 
} else if (form.pass1.value=="setdiscount"){
location="buy-setdiscount.html" 
} else {
alert("Invalid Coupon or please use lower case letters")
}
}