/*
 *
 * @author Lavong Soysavanh
 * @version 2007-10-12
 */

var defaultFontSize = 76;
var currentFontSize = defaultFontSize;

/**
 * listens on selectbox and delegate filtering by selection
 *
 * @param c		country name
 * @param colNo	column number
 * @param sel	select form
 */
function loadSelection(c, colNo, a, sel) {
	var country = c;
	var col = colNo;
	var amount = a;
	var givenValue = sel.value;
	if (givenValue == "empty") {
		//window.alert(col + " --- " + sel.value);
		self.location.href = "results.php";
		//sel.form.reset();
		return;
	} else {
		//window.alert(col + " - " + sel.value);
		self.location.href = "?country=" + country + "&f=" + givenValue + "&fC=" + col + "&amount=" + amount;
		//sel.form.reset();
	}
}

/**
 * changes font size
 * by joomla.org
 *
 */
function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

	if(currentFontSize > 100){
		currentFontSize = 100;
	} else if (currentFontSize < 60){
		currentFontSize = 60;
	}

	setFontSize(currentFontSize);
}

/**
 * sets font size
 * by joomla.org
 *
 */
function setFontSize(fontSize){
	//var stObj = (document.getElementById) ? document.getElementById('infoPanel') : document.all('mainPanel');
	document.body.style.fontSize = fontSize + '%';
	
	//alert (document.body.style.fontSize);
}

/**
 *
 */
function show(id) {
	if (document.getElementById) {
		if (document.getElementById(id).style.visibility == "visible") {
			document.getElementById(id).style.visibility = "hidden";
		} else {
			document.getElementById(id).style.visibility = "visible";
		}
	}
}