/* --- Swazz Javascript Calendar ---
/* --- v 1.0 3rd November 2006
By Oliver Bryant
http://calendar.swazz.org */

function getObj(objID)
{
    if (document.getElementById) {return document.getElementById(objID);}
    else if (document.all) {return document.all[objID];}
    else if (document.layers) {return document.layers[objID];}
}

function checkClick(e) {
	e?evt=e:evt=event;
	CSE=evt.target?evt.target:evt.srcElement;
	if (getObj('js_calendar')) {
		if (!isChild(CSE,getObj('js_calendar'))) {
			if ($('d2')) $('d2').style.visibility = 'visible';
			if ($('m2')) $('m2').style.visibility = 'visible';
			if ($('y2')) $('y2').style.visibility = 'visible';
			getObj('js_calendar').style.display='none';
		}
	}
}

function isChild(s,d) {
	while(s) {
		if (s==d) 
			return true;
		s=s.parentNode;
	}
	return false;
}

function Left(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft+1;
}

function Top(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop-3;
}
	
document.write('<table id="js_calendar" style="position:absolute;border-collapse:collapse;display:none;z-index:1;">');
document.write('<tr class="top"><td class="left" style="cursor:pointer" onclick="csubm()"><img src="fileadmin/template/images/page_previous.gif" alt="" onmouseover="switchPic(\'fileadmin/template/images/page_previous_on.gif\', this);" onmouseout="switchPic(\'fileadmin/template/images/page_previous.gif\', this);"></td><td colspan=5 id="mns"></td><td class="right" style="cursor:pointer" onclick="caddm()"><img src="fileadmin/template/images/page_next.gif" alt="" onmouseover="switchPic(\'fileadmin/template/images/page_next_on.gif\', this);" onmouseout="switchPic(\'fileadmin/template/images/page_next.gif\', this);"></td></tr>');
document.write('<tr class="weekdays"><td>S</td><td>M</td><td>D</td><td>M</td><td>D</td><td>F</td><td>S</td></tr>');
for(var kk=1;kk<=6;kk++) {
	document.write('<tr class="days">');
	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('</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(dfield, mfield, yfield) {
	ielem = $(dfield);
	updobj=ielem;
	day_field = $(dfield);
	month_field = $(mfield);
	year_field = $(yfield);
	
	if ($(dfield).value == 0 || $(mfield).value == 0 || $(yfield).value == 0) {
		$(dfield).value = new Date().getDate();
		$(mfield).value = new Date().getMonth()+1;
		$(yfield).value = new Date().getFullYear();
	}
	
	if (dfield == 'd1') {
		$('d2').style.visibility = 'hidden';
		$('m2').style.visibility = 'hidden';
		$('y2').style.visibility = 'hidden';
	}
	
	getObj('js_calendar').style.left=Left(ielem)+'px';
	getObj('js_calendar').style.top=Top(ielem)+ielem.offsetHeight+'px';
	getObj('js_calendar').style.display='';
	
	// First check date is valid
	curdt=$(dfield).value+'/'+$(mfield).value+'/'+$(yfield).value;
	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)).style.background='#fff';
}
function cs_out(e) {
	evtTgt(EvtObj(e)).style.background='#e5e5e5';
}
function cs_click(e) {
	updateString=calvalarr[evtTgt(EvtObj(e)).id.substring(1,evtTgt(EvtObj(e)).id.length)];
	updateDates = updateString.split('/');
	isdt=true;
	for (var z=0;z<updateDates.length;z++) {
		if (isNaN(updateDates[z]))
			isdt=false;
	}
	if (isdt&(updateDates.length==3)) {
		if ($('d2')) $('d2').style.visibility = 'visible';
		if ($('m2')) $('m2').style.visibility = 'visible';
		if ($('y2')) $('y2').style.visibility = 'visible';
		day_field.value = updateDates[0];
		month_field.value = updateDates[1];
		year_field.value = updateDates[2];
	}
	
	getObj('js_calendar').style.display='none';
	
}

var mn=new Array('Jan','Feb','Mär','Apr','Mai','Jun','Jul','Aug','Sep','Okt','Nov','Dez');
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);

function f_cps(obj) {
	obj.style.background='#e5e5e5';
	obj.style.cursor='pointer';
}

function f_cpps(obj) {
	obj.style.background='#e5e5e5';
	obj.style.cursor='default';
}

function f_hds(obj) {
	obj.style.background='#ffb86d';
	obj.style.cursor='pointer';
}

// 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();
	getObj('mns').innerHTML=mn[cm]+ ' ' + cy;
	marr=((cy%4)==0)?mnl:mnn;
	for(var d=1;d<=42;d++) {
		f_cps(getObj('v'+parseInt(d)));
		if ((d >= (cd -(-1))) && (d<=cd-(-marr[cm]))) {
			dip=((d-cd < sd)&&(cm==sccm)&&(cy==sccy));
			htd=((hd!='')&&(d-cd==hd));
			if (dip)
				f_cpps(getObj('v'+parseInt(d)));
			else if (htd)
				f_hds(getObj('v'+parseInt(d)));
			else
				f_cps(getObj('v'+parseInt(d)));

			getObj('v'+parseInt(d)).onmouseover=(dip)?null:cs_over;
			getObj('v'+parseInt(d)).onmouseout=(dip)?null:cs_out;
			getObj('v'+parseInt(d)).onclick=(dip)?null:cs_click;
			
			getObj('v'+parseInt(d)).innerHTML=d-cd;	
			calvalarr[d]=''+(d-cd)+'/'+(cm-(-1))+'/'+cy;
		}
		else {
			getObj('v'+d).innerHTML='&nbsp;';
			getObj('v'+parseInt(d)).onmouseover=null;
			getObj('v'+parseInt(d)).onmouseout=null;
			getObj('v'+parseInt(d)).style.cursor='default';
			}
	}
}

prepcalendar('',ccm,ccy);
//getObj('js_calendar'+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 cdayf() {
if ((ccy>sccy)|((ccy==sccy)&&(ccm>=sccm)))
	return;
else {
	ccy=sccy;
	ccm=sccm;
	cfd=scfd;
	}
}