function zeros(x)
{
	if(x<10) x="0"+x;
	return x;
}

function initbk(bk,lg)
{
	var d = new Date();
	di = d.getDate();
	mi = 1 + d.getMonth();
	ai = d.getFullYear();
	document.getElementById("cid").value = di;
	document.getElementById("cim").value = mi;
	document.getElementById("cia").value = ai;
	document.getElementById("nn" ).value =  1;

	actbk(bk,lg);
}

function actbk(bk,lg)
{
	var cid = new Number(document.getElementById("cid").value);
	var cim = new Number(document.getElementById("cim").value);
	var cia = new Number(document.getElementById("cia").value);
	var nn  = new Number(document.getElementById("nn" ).value);

	cim--;

	var ci = new Date;
	var co = new Date;

	var cid2= new Number;

	ci.setFullYear(cia,cim,cid);

	cid2=cid+nn;
	co.setFullYear(cia,cim,cid2);

	si = ci.getFullYear() + "-" + zeros(1 + ci.getMonth()) + "-" + zeros(ci.getDate());
	so = co.getFullYear() + "-" + zeros(1 + co.getMonth()) + "-" + zeros(co.getDate());

	switch(lg)
	{
		case 'pt':
			lg=".pt";
		break;
		case 'es':
			lg=".es";
		break;
		case 'fr':
			lg=".fr";
		break;
		default: lg="";
	}

	url="http://m.booking.com/hotel/pt/" + bk + lg + ".html?aid=310499;label=vc_hotel_movel;checkin=" + si + ";checkout=" + so;
	document.getElementById("ibk").src = url;
}