function calendar(inputName) 
{
	input = document.getElementById(inputName);
	if(typeof(input) == 'undefined')
	{
		alert("Nu am gasit campul din care trebuie preluata data. Va rugam contactati administratorul.");
		return false;
	}

	window.open('calendar.php?input_name=' + inputName + '&input_value=' + input.value,'calendar','');
	//alert(inputName + ' ' + input.value);
}