function submitDate(date) {
	document.getElementById(inputPlaceId).value = date;

	var obj = document.getElementById(inputPlaceId);
	if (obj.parentNode) {
		while (obj.parentNode) {
			if (obj.tagName == "FORM") {
				obj.submit();
				break;
			} else {
				obj = obj.parentNode;
			}
		}
	}
}
function gotoMessages(date) {
	document.getElementById('txt_date').value = date;
	document.frmDate.action = "?page=calories";
	document.frmDate.submit();
}

/* --- 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('calender') && !isChild(CSE,getObj('calender'))) {
		getObj('calender').style.display='none';
		show_flash_objects();
	}
	if (getObj('hoverInput') && !isChild(CSE,getObj('hoverInput'))) {
		getObj('hoverInput').style.display='none';
		show_flash_objects();
	}
}

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

function get_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;
}

function get_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;
}

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);
var specialDays = new Array();
var inputPlaceId = "txt_date";

document.write('<table id="calender" cellpadding="0" cellspacing="3">');
document.write('<tr><th colspan="7" id="mns"></th></tr>');
var tmp_out = '<tr>';
for (x in dn) {
	tmp_out += '<td class="lbl_day">' + dn[x] + '</td>';
}
tmp_out += '</tr>';
document.write(tmp_out);

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('</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();

function show_calender(yourdate, position, input) {
	inputPlaceId = input;
	if (yourdate != null) {
		yourdate = yourdate.split('-');
		ccm = yourdate[1] - 1;
		ccy = yourdate[0];		
		prepcalendar(yourdate[2], yourdate[1] - 1, yourdate[0]);
	}
	document.getElementById('calender').style.top = Math.round(get_top(document.getElementById(position)) + document.getElementById(position).offsetHeight + 8) + "px";
	document.getElementById('calender').style.left = Math.round(get_left(document.getElementById(position)) - Math.round(document.getElementById(position).offsetWidth / 2)) + "px";
	document.getElementById('calender').style.display = 'block';
	hide_flash_objects();
}

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 += ' day_hover';
}
function cs_out(e) {
	evtTgt(EvtObj(e)).className = evtTgt(EvtObj(e)).className.split(' ')[0];
}
function cs_click(e) {
	getObj('calender').style.display='none';
	submitDate(calvalarr[evtTgt(EvtObj(e)).id.substring(1,evtTgt(EvtObj(e)).id.length)]);
}

// 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 = '<a href="javascript:csubm();" style="float: left; margin-left: 7px;">&lt;</a> ' + mn[cm]+ ' ' + cy + ' <a href="javascript:caddm();" style="float: right; margin-right: 7px;">&gt;</a>';
	marr=((cy%4)==0)?mnl:mnn;
	for(var d=1;d<=42;d++) {
		getObj('v'+parseInt(d)).className = "day_none";
		if ((d >= (cd -(-1))) && (d<=cd-(-marr[cm]))) {
			dip=((d-cd < sd)&&(cm==sccm)&&(cy==sccy));
			// Hot day
			htd=((hd!='')&&(d-cd==hd));
			if (specialDays[cy + '-' + (cm-(-1)) + '-' + (d-cd)]) {
				getObj('v'+parseInt(d)).className = "day_hot";
			} else {
				getObj('v'+parseInt(d)).className = "day_normal";
			}
			getObj('v'+parseInt(d)).onmouseover = cs_over;
			getObj('v'+parseInt(d)).onmouseout = cs_out;
			getObj('v'+parseInt(d)).onclick = cs_click;

			getObj('v'+parseInt(d)).innerHTML=d-cd;
			calvalarr[d]= '' + cy + '-' + (cm-(-1)) + '-' + (d-cd) + '';
		} 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);

function caddm() {
	marr=((ccy%4)==0)?mnl:mnn;

	ccm+=1;
	if (ccm>=12) {
		ccm=0;
		ccy++;
	}
	prepcalendar('',ccm,ccy);
}

function csubm() {
	marr=((ccy%4)==0)?mnl:mnn;

	ccm-=1;
	if (ccm<0) {
		ccm=11;
		ccy--;
	}
	prepcalendar('',ccm,ccy);
}