var xmlHttpReqObj
function reservation(id_pulka,date_cal,id_sess) {
		xmlHttpReqObj=GetXmlHttpObject()
		if (xmlHttpReqObj==null) {
			alert ("Browser does not support HTTP Request")
			return
		}
		var url="reservation.php?id_pulka="+id_pulka+"&date_cal="+date_cal
		url=url+"&randid="+Math.random()
		url=url+"&SESSID="+id_sess
		xmlHttpReqObj.onreadystatechange=loadreservation
		xmlHttpReqObj.open("GET",url,true)
		xmlHttpReqObj.send(null)
}
function unreservation(id_pulka,date_cal,id_sess) {
		xmlHttpReqObj=GetXmlHttpObject()
		if (xmlHttpReqObj==null) {
			alert ("Browser does not support HTTP Request")
			return
		}
		var url="reservation.php?act=del&id_pulka="+id_pulka+"&date_cal="+date_cal
		url=url+"&randid="+Math.random()
		url=url+"&SESSID="+id_sess
		xmlHttpReqObj.onreadystatechange=loadreservation
		xmlHttpReqObj.open("GET",url,true)
		xmlHttpReqObj.send(null)
}
function loadreservation() {
	if ((xmlHttpReqObj.readyState==4 || xmlHttpReqObj.readyState=="complete"))
	{
		/*la reponse est une chaine "id_pulka;date_cal;id_sess;act" */
		/*on la decoupe pour recuperer les 2 parties dans un tableau */
		/*alert(xmlHttpreservation.responseText)*/
		var arr_response = new Array()
		arr_response=xmlHttpReqObj.responseText.split(";")
		var id_pulka = arr_response[0]
		var date_cal = arr_response[1]
		var id_sess = arr_response[2]
		var act = arr_response[3]
		myreservation(id_sess)
		if (act == 'del') {	document.getElementById("cal"+date_cal).className='calendarDays1'; }
		else { document.getElementById("cal"+date_cal).className='calendarHLpreres1'; }
	} else {
		document.getElementById("myreservation").innerHTML='<img src="/images/loading.gif" border="0">'
	}
}