function clearField(text) {
     if (text.value == text.defaultValue)
         text.value = "";
 }
 
  function fillField(text) {
     if (text.value == "")
         text.value = text.defaultValue;
 }
 

function toggleDisplay(divNum,arrowNum) {
	if (document.getElementById(divNum).style.display=="none") {
		document.getElementById(divNum).style.display="block";
		document.getElementById(arrowNum).src="/images/collapse.gif";
	}
	else {
		document.getElementById(divNum).style.display="none";
		document.getElementById(arrowNum).src="/images/expand.gif";
	}
}