// document.getElementById() shortcut
if (typeof $ == 'undefined') {

	var $ = function(e) {
		return document.getElementById(e);
	
	}
}

init = function() {
	var cd = new Date();
	$('birthdate').value = cd.getDate() + '/' + (cd.getMonth()+1) + '/' + cd.getFullYear();
	$('studydate').value = (cd.getMonth()+1) + '/' + cd.getFullYear();
	//$('birthtime').value = formatTime(cd);
}

start = function() {

	var dres = $('bdres');
	var h1 = $('h1');
	
	var splitDate = $('studydate').value.split("/");
	var cd = new Date(splitDate[1], splitDate[0]-1);
	splitDate = $('birthdate').value.split("/");   	
   	var bd = new Date(splitDate[2], splitDate[1]-1, splitDate[0]);
     	      	 
   	if (isNaN(bd) || isNaN(cd)) {	
   		dres.firstChild.data = 'Date invalide';
   		return;
   	}
   	else
   		dres.firstChild.data = ' ';
   
   	dnf = new Array ("dimanche","lundi","mardi","mercredi","jeudi","vendredi","samedi"); 	
   	
   	h1.firstChild.data = 'Votre rythme - Né(e) le ' + dnf[bd.getDay()] + ' ' + bd.getDate() + '/' + (bd.getMonth()+1) + '/' + bd.getFullYear();
   	// + ' à ' + formatTime(bd);

	if ($('displ').checked)
		startLists(bd, cd);
	else
		startCurves(bd, cd);
	
	return false;

}

startLists = function(bd, cd) {

	var ctnr = $('container');
	ctnr.innerHTML = "";
	   
	ctnr.appendChild(showCalendar(bd, cd));
	ctnr.appendChild(showCalendar(bd, cd));
	ctnr.appendChild(showCalendar(bd, cd));
	ctnr.appendChild(showCalendar(bd, cd));
	
	return false;

}

startCurves = function(bd, cd) {

	var ctnr = $('container');
	ctnr.innerHTML = "";
	   	
   	var div = document.createElement('h1'); 	 
	div.appendChild(document.createTextNode(getMonthName(cd) + ' ' + cd.getFullYear()));
	ctnr.appendChild(div);
   	
	ctnr.appendChild(showCurve(bd, cd));
	
	div = document.createElement('h1'); 	 
	div.appendChild(document.createTextNode(getMonthName(cd) + ' ' + cd.getFullYear()));
	ctnr.appendChild(div);
	
	ctnr.appendChild(showCurve(bd, cd));
	
	div = document.createElement('h1'); 	 
	div.appendChild(document.createTextNode(getMonthName(cd) + ' ' + cd.getFullYear()));
	ctnr.appendChild(div);
	
	ctnr.appendChild(showCurve(bd, cd));
}

showCalendar = function(bd, cd) {

   	var span = document.createElement('div');
   	var ca = document.createAttribute('class');
 	ca.nodeValue = 'l_outer';
 	span.setAttributeNode(ca);
 	var da = $('dispall').checked; // display all
   		
   	var div = document.createElement('h1');
	div.appendChild(document.createTextNode(getMonthName(cd) + ' ' + cd.getFullYear()));
	span.appendChild(div);
   	
	cd.setDate(1);
	c_month = cd.getMonth();
   	
   	dn = new Array ("Di","Lu","Ma","Me","Je","Ve","Sa"); 	
   	
   	for (var i = 0 ; i < 31 ; i++) {
   		if (cd.getMonth() != c_month)
			break;
			
		div = document.createElement('div'); 		

    	p = document.createElement('p');
    	p.appendChild(document.createTextNode(dn[cd.getDay()] + ' ' + cd.getDate()));
    	ca = document.createAttribute('class');
    	ca.nodeValue = 'd';
 		p.setAttributeNode(ca);
    	div.appendChild(p);
    	
    	/* ==============
	   	P 1 - 7 - 12 - 18 (- 23)
		E 1 - 8 - 15 - 22 (- 28)
		I 1 - 9 - 17 - 26 (- 33)
		================= */
    	
    	/* var cdt = cd.getTime() / 1000;
	   	var bdt = bd.getTime() / 1000;*/
	   	var cdt = Date.UTC(cd.getFullYear(), cd.getMonth(), cd.getDate()) / 1000;
	   	var bdt = Date.UTC(bd.getFullYear(), bd.getMonth(), bd.getDate()) / 1000;
	   	var dif = Math.floor((cdt-bdt) / 86400) ; // days count from birthday to current date
	   	
		if (dif >= 0) {
		
			var cp = dif%23;
			var ce = dif%28;
			var ci = dif%33; 	
		   	   	
	    	if ((cp == 0) || (cp == 6) || (cp == 11) || (cp == 17)) {
	    	    p = document.createElement('p');
	    		//p.appendChild(document.createTextNode('PHYSIQUE (' + (cp+1) + ')'));
	    		p.appendChild(document.createTextNode('P(' + (cp+1) + ')'));
	    		ca = document.createAttribute('class');
	    		ca.nodeValue = 'p';
	 			p.setAttributeNode(ca);
	    		div.appendChild(p);
	    	}
	    	else if (da) {
	    		p = document.createElement('p');
	    		p.appendChild(document.createTextNode('P(' + (cp+1) + ')'));
	    		div.appendChild(p);
	    	}
	    	if ((ce == 0) || (ce == 7) || (ce == 14) || (ce == 21)) {
	    	    p = document.createElement('p');
	    		//p.appendChild(document.createTextNode('EMOTIONNEL (' + (ce+1) + ')'));
	    		p.appendChild(document.createTextNode('E(' + (ce+1) + ')'));
	    		ca = document.createAttribute('class');
	    		ca.nodeValue = 'e';
	 			p.setAttributeNode(ca);
	    		div.appendChild(p);
	    	}
	    	else if (da) {
	    		p = document.createElement('p');
	    		p.appendChild(document.createTextNode('E(' + (ce+1) + ')'));
	    		div.appendChild(p);
	    	}
	    	
	    	if ((ci == 0) || (ci == 8) || (ci == 16) || (ci == 25)) {
	    	    p = document.createElement('p');
	    		//p.appendChild(document.createTextNode('INTELLECTUEL (' + (ci+1) + ')'));
	    		p.appendChild(document.createTextNode('I(' + (ci+1) + ')'));
	    		ca = document.createAttribute('class');
	    		ca.nodeValue = 'i';
	 			p.setAttributeNode(ca);
	    		div.appendChild(p);
	    	}
	    	else if (da) {
	    		p = document.createElement('p');
	    		p.appendChild(document.createTextNode('I(' + (ci+1) + ')'));
	    		div.appendChild(p);
	    	}
 		}
		
		span.appendChild(div);
		cd.setDate(cd.getDate() + 1);
		//cd.setTime(cd.getTime() + 86400000);
   	}
   	return span;
}

showCurve = function(bd, cd) {

   	var cbg = document.createElement('div');
   	var ca = document.createAttribute('class');
 	ca.nodeValue = 'c_bg';
 	cbg.setAttributeNode(ca);
 	 	
	cd.setDate(1);
	c_month = cd.getMonth();
   	
   	dn = new Array ("Di","Lu","Ma","Me","Je","Ve","Sa"); 	
   	
   	var daynbr = 0;
   	/* var cdt = cd.getTime() / 1000;
	var bdt = bd.getTime() / 1000;*/
	var cdt = Date.UTC(cd.getFullYear(), cd.getMonth(), cd.getDate()) / 1000;
	var bdt = Date.UTC(bd.getFullYear(), bd.getMonth(), bd.getDate()) / 1000;
	var dif = (cdt-bdt) / 3600;
	//var dif = Math.ceil((cdt-bdt) / 86400) ; // days count from birthday to current date	
	
	var cp=0;
	var ce=0;
	var ci=0;
	
	//if (dif <0)
	// dif = Math.abs(dif);
	
	dif = -1 * dif;
	
	//if (dif >= 0) {
		
		cp = dif%(23*24);
		ce = dif%(28*24);
		ci = dif%(33*24);
	
	//} 
	
	//alert(cp + " " + ce + " " + ci);
	
	curve = document.createElement('div');
   	ca = document.createAttribute('class');
 	ca.nodeValue = 'c_phy';
 	curve.setAttributeNode(ca);
 	curve.style.backgroundPosition = (cp) + "px";
 	
 	cbg.appendChild(curve);

 	curve = document.createElement('div');
   	ca = document.createAttribute('class');
 	ca.nodeValue = 'c_emo';
 	curve.setAttributeNode(ca);
 	curve.style.backgroundPosition = (ce) + "px";
 	
 	cbg.appendChild(curve);

 	curve = document.createElement('div');
   	ca = document.createAttribute('class');
 	ca.nodeValue = 'c_int';
 	curve.setAttributeNode(ca);
 	curve.style.backgroundPosition = (ci) + "px";
 	
 	cbg.appendChild(curve);
   	
   	for ( ; daynbr < 31 ; daynbr++) {
   		if (cd.getMonth() != c_month)
			break;
			
		div = document.createElement('div'); 
    	ca = document.createAttribute('class');
    	ca.nodeValue = 'c_d';
 		div.setAttributeNode(ca);		

    	p = document.createElement('p');
    	p.appendChild(document.createTextNode(dn[cd.getDay()] + ' ' + cd.getDate()));
    	ca = document.createAttribute('class');
    	ca.nodeValue = 'c_d_p';
 		p.setAttributeNode(ca);		
    	div.appendChild(p);
    			
		cbg.appendChild(div);
		cd.setDate(cd.getDate() + 1);
   	}
   	
   	cbg.style.width =  (daynbr*24) + "px";
   	
   	return cbg;
}


getMonthName = function(d) {

	var mn = new Array
("Janvier","Février","Mars","Avril","Mai","Juin","Juillet",
"Août","Septembre","Octobre","Novembre","Décembre");

	return mn[d.getMonth()];
}

formatTime = function(d) {
	var md = d.getMinutes();
	return  d.getHours() + ":" + ((md < 10) ? "0" + md : md);
}

window.captureEvents(Event.KEYPRESS);
window.onkeypress = chkkey;

function chkkey(e) {
 if (e.which == 13)
 	start();
 else if (e.which == 97 || e.which == 65) {
 	da = true;
 	start();
 }
}