// JavaScript Document
var year;
var month;
var days;

function selectedyear(y){
	//window.document.form1.Submit.disabled = true;
	year = y;
}

function getdaysinmonth(m,y){
	var aux = y % 4;
	var res;
	
	if ( m == 1 || m == 3 ||m == 5 ||m == 7 ||m == 8 || m == 10 || m == 12)	{
		res = 31;
		//alert("Dins de getdaysinmonth "+y+" - "+m+" - "+ res);
			
	} else if ( m == 4 || m == 6 || m == 9 || m==11){
		res = 30;
		//alert("Dins de getdaysinmonth "+y+" - "+m+" - "+ res);
		} else {
				if (aux == 0){ res = 29;}
				else res = 28;
				//alert("Dins de getdaysinmonth "+y+" - "+m+" - "+ res);
		}
	
	return res;		
}

function filldaysmonth(m){
	var i;
	month = m;
	days = getdaysinmonth(month,year);
	
	//window.document.form1.Submit.disabled = true;
	
	window.document.form1.Dia.options.length = days +1;
	
	for(i=1; i<=window.document.form1.Dia.options.length; i++){
		window.document.form1.Dia.options[i].text = i;
	}
}

function EnableSubmit(){
	window.document.form1.Submit.disabled = false;
}