activo = 0;

function IWcambiar_fecha(mes,ano,e,valor){
	new Ajax.Updater('IWcalendar','IWcalendar/_calendar.php?id='+e+'&value='+valor+'&mes='+mes+'&ano='+ano);	
	
}

function IWcalendar_show(e){
	
	el = $(e);
	var positions = IWposition(el);
	
	capa = $('IWcalendar');
	
	valor = el.value;
	
	positions[1] = positions[1]+23;
	
	//hack for apartamentosnorte
	if(e == "desde" || e == "hasta")
		positions[0] = positions[0]-105;
	
	capa.style.left = positions[0]+"px";
	capa.style.top = positions[1]+"px";
	
	
	new Ajax.Updater('IWcalendar','IWcalendar/_calendar.php?id='+e+'&value='+valor, {
					 
					 onComplete: function(){
						 
						 capa.style.display = "block";
				 				 
					 }
					 
					 });	
}

function IWcalendar_hide(){
	
	if(activo==0){
		capa = $('IWcalendar');
		capa.style.display = "none";
	 }
}

function active(){

	activo = 1;
	
}

function desactive(){

	activo = 0;
	
}

function IWselect(e,valor){

	$(e).value = valor;
	desactive()
	IWcalendar_hide();
			
	//hack 
	if(e == "desde2")
	{
		document.getElementById("hasta2").value = dosDiasMas(document.getElementById("desde2").value);
	}
	else if(e == "desde")
	{
		document.getElementById("hasta").value =  dosDiasMas(document.getElementById("desde").value);
	}
}

function dosDiasMas(fechaCadena)
{
	var desdetime = fechaCadena.split("-");
	
	var day = desdetime[0];
	var month = desdetime[1];
	var year = desdetime[2];
	
	desdetime = new Date(year, month-1, day, 5, 0, 0, 0);
	desdetime.setTime(desdetime.getTime()+(2*24*60*60*1000)); //dos dias despues

	var monthZF=desdetime.getMonth()+1;
	monthZF=zeroFill(monthZF.toString(), 2);
	
	dayZF=desdetime.getDate()
	dayZF=zeroFill(dayZF.toString(), 2);
	
	return dayZF+"-"+monthZF+"-"+desdetime.getFullYear();
}

function mktime () {
    // Get UNIX timestamp for a date  
    // 
    // version: 1102.614
    // discuss at: http://phpjs.org/functions/mktime
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: baris ozdil
    // +      input by: gabriel paderni
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: FGFEmperor
    // +      input by: Yannoo
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: jakes
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Marc Palau
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +      input by: 3D-GRAF
    // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Chris
    // +    revised by: Theriault
    // %        note 1: The return values of the following examples are
    // %        note 1: received only if your system's timezone is UTC.
    // *     example 1: mktime(14, 10, 2, 2, 1, 2008);
    // *     returns 1: 1201875002
    // *     example 2: mktime(0, 0, 0, 0, 1, 2008);
    // *     returns 2: 1196467200
    // *     example 3: make = mktime();
    // *     example 3: td = new Date();
    // *     example 3: real = Math.floor(td.getTime() / 1000);
    // *     example 3: diff = (real - make);
    // *     results 3: diff < 5
    // *     example 4: mktime(0, 0, 0, 13, 1, 1997)
    // *     returns 4: 883612800 
    // *     example 5: mktime(0, 0, 0, 1, 1, 1998)
    // *     returns 5: 883612800 
    // *     example 6: mktime(0, 0, 0, 1, 1, 98)
    // *     returns 6: 883612800 
    // *     example 7: mktime(23, 59, 59, 13, 0, 2010)
    // *     returns 7: 1293839999
    // *     example 8: mktime(0, 0, -1, 1, 1, 1970)
    // *     returns 8: -1
    var d = new Date(),
        r = arguments,
        i = 0,
        e = ['Hours', 'Minutes', 'Seconds', 'Month', 'Date', 'FullYear'];
 
    for (i = 0; i < e.length; i++) {
        if (typeof r[i] === 'undefined') {
            r[i] = d['get' + e[i]]();
            r[i] += (i === 3); // +1 to fix JS months.
        } else {
            r[i] = parseInt(r[i], 10);
            if (isNaN(r[i])) {
                return false;
            }
        }
    }
 
    // Map years 0-69 to 2000-2069 and years 70-100 to 1970-2000.
    r[5] += (r[5] >= 0 ? (r[5] <= 69 ? 2e3 : (r[5] <= 100 ? 1900 : 0)) : 0);
 
    // Set year, month (-1 to fix JS months), and date.
    // !This must come before the call to setHours!
    d.setFullYear(r[5], r[3] - 1, r[4]);
 
    // Set hours, minutes, and seconds.
    d.setHours(r[0], r[1], r[2]);
 
    // Divide milliseconds by 1000 to return seconds and drop decimal.
    // Add 1 second if negative or it'll be off from PHP by 1 second.
    return (d.getTime() / 1e3 >> 0) - (d.getTime() < 0);
}

function zeroFill(o,n){
	for(var x=o.length; x<n; x++)
	{
		o='0'+o;
	}
	
	return o;
}

function IWchange(e){
	
	el = $(e);
	var positions = IWposition(el);
	
	capa = $('IWcalendar');
	
	positions[1] = positions[1];
	
	capa.style.left = positions[0]+"px";
	capa.style.top = positions[1]+"px";
	
}

function IWposition(el)
{
	var curLeft = 0;
	var curTop = 0;
	var corrections = IWcorrection(el);

	if (el.offsetParent)
	{
		do {
			curLeft += el.offsetLeft;
			curTop += el.offsetTop;
		} while (el = el.offsetParent);
		
			desplazamiento_y=document.body.scrollTop;
			desplazamiento_x=document.body.scrollLeft;
			curLeft = curLeft+desplazamiento_x;
			curTop = curTop + desplazamiento_y;
		
		return [ (curLeft - corrections[0]), (curTop - corrections[1]) ];
	}
}


function IWcorrection(el)
{
	var curX = 0;
	var curY = 0;
	do {
		curX += el.scrollLeft;
		curY += el.scrollTop;
		if (el.nodeName == 'BODY')
			break;
	} while (el = el.parentNode);
	return [curX, curY];
}