function setVisibleEssayeca(id,bool){
	if(bool)
		document.getElementById(id).style.visibility = 'visible';
	else
		document.getElementById(id).style.visibility = 'hidden';
}

function email(user,domain,label,link) {
	var address = user+'@'+domain;
	var toWrite = '';
	if (link > 0) {toWrite += '<a href="mailto:'+address+'">';}
	if (label != '') {toWrite += label;} else {toWrite += address;}
	if (link > 0) {toWrite += '</a>';}
	document.write(toWrite);
}