function getElementByIdCompatible(the_id) {
	if (typeof the_id != 'string') {
		return the_id;
	}

	if (typeof document.getElementById != 'undefined') {
		return document.getElementById(the_id);
	} else if (typeof document.all != 'undefined') {
		return document.all[the_id];
	} else if (typeof document.layers != 'undefined') {
		return document.layers[the_id];
	} else {
		return null;
	}
}

function processForm(formName) {
	document.forms[formName].submit();
}

function disconnectForm(formName) {
	document.forms[formName].disconnect.value = "y";
	processForm(formName);
}

function agreeDisclaimer(formName) {
	if (document.forms[formName].agreeDisclaimer.checked) {
		return true;
	} else {
		return false;
	}
}

function checkDisclaimerAndProcess(formName) {
	if (document.forms[formName].userID.value == "") {
		alert('User is a mandatory field and cannot be null.');
	} else if (document.forms[formName].password.value == "") {
		alert('Password is a mandatory field and cannot be null.');
	} else if (!agreeDisclaimer(formName)) {
		alert('You have to accept the disclaimer to sign in.');
	} else {
		processForm(formName);
	}
}

function showDisclaimer(divObjectId) {
	obj = getElementByIdCompatible(divObjectId);
	obj.innerHTML = "<br/><br/><span id=\"disclaimerTitle\">Disclaimer</span><br/><br/>"
			+ "<span id=\"disclaimerContent\">This website contains general information with regard to concerned terminal(s), "
			+ "business units of Vitol Tank Terminal International (VTTI). Such information is intended, but not guaranteed, "
			+ "to be correct, complete and up-to-date. The information is provided without any warranty, either expressed or "
			+ "implied as to quality, accuracy or fitness for a particular purpose. VTTI cannot be held liable for any direct, "
			+ "indirect or consequential loss or damage arising from the use of (or the inability to use) this website or information "
			+ "contained in it, or from any action or decision taken as a result thereof.<br/>"
			+ "The accessing by users of this website is being recorded. VTTI shall be free to use any such information for "
			+ "business purposes connected with the service delivery to its customers. The content of this website is subject "
			+ "to copyright of VTTI or its licensors. Users are not allowed to copy, transmit, distribute, display or create "
			+ "derivative works from any site content for commercial purposes. Links to other websites are intended only to draw "
			+ "the possible attention of the user of this website to those sites. VTTI has no control over such linked sites and "
			+ "a link to other websites does not imply an endorsement thereof.</span>";
}