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 expires = "";
	document.cookie = name+"="+value+expires+"; path=/;";
}
var min=11;
var max=14;
function increaseFontSize() {
	var s = parseInt(document.cookie.substr(document.cookie.search('fontsize')+9,document.cookie.search(';'))); 
	if (s<min || s>max) s = 12;
	if(s<max) {
		s += 1;
		createCookie("fontsize",s,366);
		document.body.style.fontSize = s+"px";
	}
}
function decreaseFontSize() {
	var s = parseInt(document.cookie.substr(document.cookie.search('fontsize')+9,document.cookie.search(';'))); 
	if (s<min || s>max) s = 12;
	if(s>min) {
		s -= 1;
		createCookie("fontsize",s,366);
		document.body.style.fontSize = s+"px";
	}
}
var formChanged = false;
function hasChanges() {
	formChanged = true;
}
function showChangesError(){
	return '<div class="ui-state-error ui-corner-all" style="padding: 0pt 0.7em;"><p><span class="ui-icon ui-icon-alert" style="float: left; margin-right: 0.3em;"/><strong>ACHTUNG:</strong> Nicht gespeicherte Änderungen gehen verloren!</p></div>';
}