function showCats(cat,cat1,cat2)
{
 elem = document.getElementById("cat");
 elem.style.display = block;
  elem1 = document.getElementById("cat1");
 elem1.style.display = none;
  elem2 = document.getElementById("cat2");
 elem2.style.display = none;
}

function checkZip(){
	var theInput = document.getElementById('personzip');
	var theSpan = document.getElementById('zipmessage');
	if(! /(?:\d){4}(?: )?[a-zA-Z]{2}/.test(theInput.value)) {
		theSpan.style.display="inline";
		theInput.focus();
		return false;
	} else {
		theSpan.style.display="none";
		return true;
	}
	return;
}