function limitChars(textid, limit, infodiv) {
	var text = Ext.get(textid).getValue(); 
	var textlength = text.length;
	
	if(textlength > limit) {
		Ext.get(infodiv).update("You cannot write more then "+limit+" characters!");
		Ext.getDom(textid).value = text.substr(0, limit);
		return false;
	} else {
		Ext.get(infodiv).update("You have "+(limit - textlength)+" characters left.");
		return true;
	}
}