function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function checkLang()
{
	x = readCookie('ceflang');
	if (x=="french")
	{
		toggleOff('english');
		toggleOn('french');
	}
	else
	{
		toggleOff('french');
		toggleOn('english');
	}
}


function toggleLanguage(lang)
{
	if (lang=="french")
	{
		toggleOff('english');
		toggleOn('french');		
		createCookie('ceflang','french',7);		
	}
	else
	{
		//toggle language to english
		toggleOff('french');		
		toggleOn('english');
		createCookie('ceflang','english',7);		
	}
}

function toggleOn(classname)
{
//display class
	var el = getElementsByClass(classname);

	// this loops thru the array and sets the style you want
	for (var i=0; i < el.length; i++){
		//alert(i);
		el[i].style.display = "block";
	}
}

function toggleOff(classname)
{
//hide class
	var el = getElementsByClass(classname);

	// this loops thru the array and sets the style you want
	for (var i=0; i < el.length; i++){
		//alert(i);
		el[i].style.display = "none";
	}
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}