var lfStart = false;
var lfTimer;
var lfFlag = false;

function je_switch(lang) {
	
	var je_visi;
	var je_hideA;
	var je_hideB;
	
	if (f==undefined && lfStart) {
		clearInterval(lfTimer);
		lfStart = false;
	}
	
	if (lang=="j" || lang=="J") {
		je_visi="j";
		je_hideA="e";
		je_hideB="f";
	}
	if (lang=="f" || lang=="F") {
		je_visi="f";
		je_hideA="j";
		je_hideB="e";
	} else if (lang=="e" || lang=="E") {
		je_visi="e";
		je_hideA="j";
		je_hideB="f";
	}
	
	for (var i=0; i < document.getElementsByTagName("span").length; i++) {
		var je_span = document.getElementsByTagName("span").item(i);
		 if (je_span.id == je_visi) {
		 	je_span.style.visibility = "visible";
		} if (je_span.id == je_hideA) {
			je_span.style.visibility = "hidden";
		} else if (je_span.id == je_hideB) {
			je_span.style.visibility = "hidden";
		}
	}
}