function checkguarantee() {
 
  guaranteenumber = document.guarantee.guaranteenum.value;
  dateday = document.guarantee.day.options[document.guarantee.day.selectedIndex].value;
  datemonth = document.guarantee.month.options[document.guarantee.month.selectedIndex].value;
  dateyear = document.guarantee.year.options[document.guarantee.year.selectedIndex].value;
  name = document.guarantee.name.value;
  streetaddress = document.guarantee.streetaddress.value;
  suburb = document.guarantee.suburb.value;
  city = document.guarantee.citytown.value;
  product = document.guarantee.productpurchased.value;
  size = document.guarantee.size.value;
  
 
 returnval = true;
 hideAllErrors();
  if (guaranteenumber == "") {
 returnval = false;
  document.getElementById("errorsError").style.display = "inline";
 document.getElementById("guaranteenumError").style.display = "inline";
  }
 if (dateday == "select" || datemonth == "select" || dateyear == "select") {
 returnval = false;
  document.getElementById("errorsError").style.display = "inline";
 document.getElementById("dateError").style.display = "inline";
  } 
 if (name == "") {
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("nameError").style.display = "inline";
  }
if (streetaddress == "") {
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("streetaddressError").style.display = "inline";
  }
 if (suburb == "") {
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("suburbError").style.display = "inline";
  }
 if (city == "") {
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("cityError").style.display = "inline";
 } 
 if (product == "") {
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("productError").style.display = "inline";
 } 
if(size == ""){
 returnval = false;
 document.getElementById("errorsError").style.display = "inline";
 document.getElementById("sizeError").style.display = "inline";
 }
 return returnval;
}
 
  function hideAllErrors() {
document.getElementById("errorsError").style.display = "none"
document.getElementById("guaranteenumError").style.display = "none"
document.getElementById("dateError").style.display = "none"
document.getElementById("nameError").style.display = "none"
document.getElementById("streetaddressError").style.display = "none"
document.getElementById("suburbError").style.display = "none"
document.getElementById("cityError").style.display = "none"
document.getElementById("productError").style.display = "none"
document.getElementById("sizeError").style.display = "none"
}