function change_title(){
	if(($('date').value<=$('max_date').value) && ($('min_date').value<=$('date').value)) {	
		$('data_titlu').setHTML($('date').value);
		get_info_small();
		get_info();
	} else {
		$('data_titlu').setHTML($('date').value);
		$('toate_curr').setHTML('Baza noastra de date contine informatii incepand de la data: '+
		'<strong>'+$('min_date').value+'</strong> pana la data <strong>'+
		$('max_date').value+'</strong>');
		$('princip_curr').setHTML('Baza noastra de date contine informatii incepand de la data: '+
		'<strong>'+$('min_date').value+'</strong> pana la data <strong>'+
		$('max_date').value+'</strong>');
	}		
}

function is_number(strString) {
   var strValidChars = "0123456789";
   var strChar;
   var blnResult = true;
   if(strString.length == 0) return false;
   for (i = 0; i < strString.length && blnResult == true; i++) {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1) {
         blnResult = false;
      }
   }
   return blnResult;
}

function convert() {
	var in_val = $('val_in').value;
	var din_val = $('val_din').value;
	var nr = $('suma').value;
	if(nr.length>0 && is_number(nr)) {
		var in_ce = $(in_val).innerHTML;
		var din_ce = $(din_val).innerHTML;
	 
	 	if(din_val != 'RON'){
			rez = (nr * in_ce)/(din_ce);
		} else {
			rez = nr * in_ce;
		}	
		$('suma_label').setHTML(din_val);
		$('rezultat_label').setHTML(in_val);
		$('rezultat_tva_label').setHTML(in_val + ' TVA(19%)');
		
		tva = 0.19 * rez;
		rez_tva = rez+tva;
		
		$('tva').value = tva;
		$('rezultat_tva').value = rez_tva;
		$('rezultat').value = rez;
	}
}

function get_info() {
	var url = document.getElementsByTagName('base')[0].href;
	url += 'Ajaxcurs/getInfo';
	var querystring = 'date='+$('date').value+'&moneda='+$('valuta_in').value;
	var request = new XHR({
   	method: 'post',
   	onRequest: function() {
      	$('toate_curr').setHTML('se reinnoieste lista...');
		},
	onSuccess: function(response) {
        $('toate_curr').setHTML(response);
		}
	});
	request.send(url, querystring);
	return false;
}

function get_info_small() {
	var url = document.getElementsByTagName('base')[0].href;
	url += 'Ajaxcurs/getInfoSmall';
	var querystring = 'date='+$('date').value+'&moneda='+$('valuta_in').value;

	var request = new XHR({
   	method: 'post',
   	onRequest: function() {
      	$('princip_curr').setHTML('se reinnoieste lista...');
		},
	onSuccess: function(response) {
        $('princip_curr').setHTML(response);
		}
	});
	request.send(url, querystring);
	return false;
}