/* Function to toggle display show/hide when links are clicked */
function toggle(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleNSW(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleQLD(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleNT(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleSA(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleTAS(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleVIC(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

function toggleWA(targetId) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") target.style.display = "";
		else target.style.display = "none";
	}
}

/* Function to validate that a search term has been entered into a search field named "query" */
function validateSearch(f) {
	if (f.query.value == "") return false;
	return true;
}

/* Function to validate that a 4 digit number has been entered into a postcode search field named "postcode" */
function validatePostcode(f) {
	var postcodeRegex = /^([0-9]{4})$/;
	if (postcodeRegex.test(f.postcode.value) != true) return false;
	return true;
}