var calendaOnChange=null;

function checkClick(e) {
	e?evt=e:evt=event;
	CSE=evt.target?evt.target:evt.srcElement;
	if ($('#fc'))
		if (!isChild(CSE,$('#fc')[0]))
			$('#fc').hide();
}

function isChild(s,d) {
	while(s) {
		if (s==d) 
			return true;
		s=s.parentNode;
	}
	return false;
}
	
document.write('<table id="fc" class="tableCalendar" style="display:none;" cellpadding="2">');
document.write('<tr><td colspan="2" style="text-align:left"><img src="../images/calendar/prevYear.gif" style="cursor:pointer" onclick="csuby()" alt="anno precedente"><img src="../images/calendar/prevMonth.gif" style="cursor:pointer" onclick="csubm()" alt="mese precedente"></td>');
document.write('<td colspan="3" id="mns" align="center" style="font:bold 13px Arial"></td>');
document.write('<td colspan="2" style="text-align:right"><img src="../images/calendar/nextMonth.gif" style="cursor:pointer" onclick="caddm()" alt="mese successivo"><img src="../images/calendar/nextYear.gif" style="cursor:pointer" onclick="caddy()" alt="anno successivo"></td></tr>');
document.write('<tr class="headTable"><td>D</td><td>L</td><td>M</td><td>M</td><td>G</td><td>V</td><td>S</td></tr>');
for(var kk=1;kk<=6;kk++) {
	document.write('<tr>');
	for(var tt=1;tt<=7;tt++) {
		num=7 * (kk-1) - (-tt);
		document.write('<td id="v' + num + '">&nbsp;</td>');
	}
	document.write('</tr>');
}
document.write('<tr><td id="toDay" class="downDate" colspan="7"></td></tr>');
document.write('</table>');

document.all?document.attachEvent('onclick',checkClick):document.addEventListener('click',checkClick,false);

// Calendar script
var now = new Date;
var sccm = now.getMonth();
var sccy = now.getFullYear();
var ccm = now.getMonth();
var ccy = now.getFullYear();

var updobj;
function lcs(ielem) {
    //ielem = ielem[0];
	updobj=$(ielem);
	$('#fc').css("left", updobj.position().left + "px");
	//$('#fc').css("top", Top(ielem[0])+ielem[0].offsetHeight + "px");
	$('#fc').css("top", updobj.position().top + updobj.outerHeight() + "px");
	$('#fc').show();
	
	// First check date is valid
	curdt=ielem.val();
	curdtarr=curdt.split('/');
	isdt=true;
	for(var k=0;k<curdtarr.length;k++) {
		if (isNaN(curdtarr[k]))
			isdt=false;
	}
	if (isdt&(curdtarr.length==3)) {
		ccm=curdtarr[1]-1;
		ccy=curdtarr[2];
		prepcalendar(curdtarr[0],curdtarr[1]-1,curdtarr[2]);
	}
	
}

function evtTgt(e)
{
	var el;
	if(e.target)el=e.target;
	else if(e.srcElement)el=e.srcElement;
	if(el.nodeType==3)el=el.parentNode; // defeat Safari bug
	return el;
}
function EvtObj(e){if(!e)e=window.event;return e;}
function cs_over(e) {
	evtTgt(EvtObj(e)).className ="toDay";
}
function cs_out(e) {
	evtTgt(EvtObj(e)).className ="everyDay";
}
function cs_click(e) {
	updobj.val(calvalarr[evtTgt(EvtObj(e)).id.substring(1,evtTgt(EvtObj(e)).id.length)]);
	$('#fc').hide();
	if (calendaOnChange!=null){
		calendaOnChange(updobj);
	}
}

function upToday() {
	updobj.val(now.getDate() + "/" + eval(now.getMonth()+1) + "/" + now.getFullYear());
	$('#fc').hide();
	if (calendaOnChange!=null){
		calendaOnChange(updobj);
	}
}

var mn = new Array('GEN','FEB','MAR','APR','MAG','GIU','LUG','AGO','SET','OTT','NOV','DIC');
var mnn = new Array('31','28','31','30','31','30','31','31','30','31','30','31');
var mnl = new Array('31','29','31','30','31','30','31','31','30','31','30','31');
var calvalarr = new Array(42);

// day selected
function prepcalendar(hd,cm,cy) {
	now = new Date();
	sd = now.getDate();
	td = new Date();
	td.setDate(1);
	td.setFullYear(cy);
	td.setMonth(cm);
	cd=td.getDay();
	$('#toDay').html("<div onclick='upToday()' style='cursor:pointer'>Oggi: " + now.getDate() + "/" + eval(now.getMonth()+1) + "/" + now.getFullYear() + "</div>");
	$('#mns').html(mn[cm]+ ' ' + cy);
	marr=((cy%4)==0)?mnl:mnn;
	for(var d=1;d<=42;d++) {
		$('#v'+parseInt(d))[0].className="everyDay";		
		if ((d >= (cd -(-1))) && (d<=cd-(-marr[cm]))) {
			dip=((d-cd < sd)&&(cm==sccm)&&(cy==sccy));
			htd=((hd!='')&&(d-cd==hd));
			
			// deremmare se si vuole disabilitare giorni passati
			//if (dip)
				//$('v'+parseInt(d)).className="oldDay";  
			//else
			if (htd)
				$('#v'+parseInt(d))[0].className="toDay";  
			else
				$('#v'+parseInt(d))[0].className="everyDay";	

			// deremmare se si vuole disabilitare giorni passati
			//$('v'+parseInt(d)).onmouseover=(dip)?null:cs_over;
			//$('v'+parseInt(d)).onmouseout=(dip)?null:cs_out;
			//$('v'+parseInt(d)).onclick=(dip)?null:cs_click;
			
			// remmare se si vuole abilitare giorni passati
			$('#v'+parseInt(d))[0].onmouseover=cs_over;
			$('#v'+parseInt(d))[0].onmouseout=cs_out;
			$('#v'+parseInt(d))[0].onclick=cs_click;
			//
			
			$('#v'+parseInt(d)).html(d-cd);	
			calvalarr[d]=''+(d-cd)+'/'+(cm-(-1))+'/'+cy;
		}
		else {
			$('#v'+d).html("&nbsp;");
			$('#v'+parseInt(d))[0].onmouseover=null;
			$('#v'+parseInt(d))[0].onmouseout=null;
			$('#v'+parseInt(d)).css("cursor","default");
			}
	}
}

prepcalendar('',ccm,ccy);
//$('fc'+cc).style.visibility='hidden';

function caddm() {
	marr=((ccy%4)==0)?mnl:mnn;
	
	ccm+=1;
	if (ccm>=12) {
		ccm=0;
		ccy++;
	}
	cdayf();
	prepcalendar('',ccm,ccy);
}

function csubm() {
	marr=((ccy%4)==0)?mnl:mnn;
	
	ccm-=1;
	if (ccm<0) {
		ccm=11;
		ccy--;
	}
	cdayf();
	prepcalendar('',ccm,ccy);
}

function caddy() {
    ccy++;
	prepcalendar('',ccm,ccy);
}

function csuby() {
    ccy--;
	prepcalendar('',ccm,ccy);
}


function cdayf() {
    //VV - Togliere il commento se si vuole bloccare la visualizzazione dei mesi passati
    //if ((ccy>sccy)|((ccy==sccy)&&(ccm>=sccm)))
    	return;
    //else {
	    //ccy=sccy;
	    //ccm=sccm;
	    //cfd=scfd;
    //}
}