function focusFields() {
	if (!document.getElementsByTagName) return false;
	var fields = document.getElementsByTagName("input");
	for (var i=0; i<fields.length; ++i) {
		fields[i].onfocus = function() { this.select(); }
	}
	fields = document.getElementsByTagName("textarea");
	for (i=0; i<fields.length; ++i) {
		fields[i].onfocus = function() { this.select(); }
	}
}

function checkEmptySearchForm(ele) {
	if (ele == null) return true;
	if (ele.value.length != 0) return true;
	else {
		alert("Please enter some search text.");
		return false;
	}
}