// make sure that something has been entered in the textfield before submitting form
function checkForm()
{

	if (document.SimpleSearch.search_text.value == "")
		alert("Please enter your search text.");
	else
		document.SimpleSearch.submit();
}

// Autonomy version of the above function.
function CheckForm2()
{
	if (document.autonomy.querytext.value == "")
		alert("Please enter your search text.");
	else {
		document.autonomy.submit();
	}
}

// Autonomy advanced search version of the above function.
function CheckForm3(Database)
{
	if (Database == "EBooks")
		return true;

	if (Database == "Books")
		checkString = new String(document.advancedsearchbks.year.value);

	if (Database == "EJournals")
		checkString = new String(document.advancedsearchjnls.year.value);

	if (checkString == "") {
		return true;
	}

	if (checkString.length < 4) {
		alert("Please make sure that the year is four digits in length and try again.");
		return false;
	}
	else
		return true;
}