//2007.09.19 18:43:35
var http_request = null;

function createRequestObject() {
	var request_obj = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		request_obj = new XMLHttpRequest();
		if (request_obj.overrideMimeType) {
			request_obj.overrideMimeType('text/xml');
		}
	}
	else if (window.ActiveXObject) { // IE
		try {
			request_obj = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			try {
				request_obj = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {}
		}
	}

	return request_obj;
}

function checkReservation(url, formid, txt) {
	var div = document.getElementById("checkDiv");
	var f = document.getElementById(formid);
	var sel = document.getElementById("rsSel");
	var recur_ok = false;
	var days_ok = false;
	var msg = "";
	if (sel )
    {
      var data =sel.options[sel.selectedIndex].value;
      if((data == "") || (data =="A")) {
      	msg += "- Please select The Room -\n" ;

       }
    }

    if(f.rtitle && f.rtitle.value == "")
		msg += "- Please Enter Title -\n";

    if (f.ftype)
    {
      var data =f.ftype.options[f.ftype.selectedIndex].value;
      if((data == "") || (data =="A")) {
      	msg += "- Please select The Function type -\n" ;

       }
    }

    if ((typeof f.interval != 'undefined') && f.interval.value != "none") {
		is_repeat = true;
		if (f.interval.value == "week" || f.interval.value == "month_day") {
			for (var i=0; i < f.elements["repeat_day[]"].length; i++) {
				if (f.elements["repeat_day[]"][i].checked == true)
					days_ok = true;
			}
		}
		else {
			days_ok = true;
		}

		if (f.repeat_until.value == "") {
			msg += "- Please choose an ending date-\n";
			recur_ok = false;
		}
	}
	else {
		recur_ok = true;
		days_ok = true;
	}
	if (days_ok == false) {
		recur_ok = false;
		msg += "- Please select days to repeat on-";
	}

	if (msg != "")
		{
			alert(msg);
			return false;
		}

	var mod_recurSTR = '&mod_recur=';
	var mod_recurID = document.getElementById("mod_recurID");

	if( mod_recurID )
		mod_recurSTR += (mod_recurID.checked==true?mod_recurID.value:'');

	http_request = createRequestObject();
	http_request.onreadystatechange = showCheckResults;
	http_request.open('POST', url + document.location.search.substring(0)+mod_recurSTR, true);
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

	div.style.textAlign = "center";
	div.style.display = "inline";
	div.innerHTML = "<h4>" + txt + "..." + "</h4>";

	var keyValue = "";
	keyValue = buildKeyValueString(f, keyValue);

	http_request.send(keyValue);
}

function buildKeyValueString(f, keyValue) {
	for (var i = 0; i < f.elements.length; i++) {
		if (f.elements[i].name == "") { continue; }
		if (f.elements[i].type=="select-multiple") {
			for (var o = 0; o < f.elements[i].options.length; o++) {
				keyValue += f.elements[i].name + "=" + f.elements[i].options[o].value + "&";
			}
		}
		else if (f.elements[i].type=="checkbox" && f.elements[i].name.indexOf("[]",0) >= 0){
			if (f.elements[i].checked) {
				keyValue += f.elements[i].name + "=" + f.elements[i].value + "&";
			}
		}
		else {
			keyValue += f.elements[i].name + "=" + f.elements[i].value + "&";
		}
	}

	return keyValue;
}

function showCheckResults() {
	if (http_request.readyState == 4) {
		var txt = "";
		var div = document.getElementById("checkDiv");

		if (http_request.status == 200) {
			div.style.textAlign = "left";
			txt = http_request.responseText;
		}
		else {
			txt = "Server Busy !! Try again";
		}

		div.innerHTML = txt;
	}
}