// System- & Browserabfrage
var browser = new Object();
{
	browser.ver = navigator.appVersion.substring(0,1);

	if (navigator.appName.indexOf("Microsoft") >= 0)
	{
		browser.ie = true;
		eval("browser.ie" + browser.ver + " = true;")
		if (browser.ver >= 3)
			browser.ig3 = true;
	} else
	if (navigator.appName == "Netscape")
	{
		browser.ns = true;
		eval("browser.ns" + browser.ver + " = true;")
		if ((browser.ver >= 3) && (browser.ver <= 4))
			browser.ng3 = true;
		if (browser.ver > 4)
			browser.ng5 = true;
	}
	else
		browser.bu = true;

	if (navigator.appVersion.indexOf("Win") > 0)
		browser.win = true;
	else if (navigator.appVersion.indexOf("Mac") > 0)
		browser.mac = true;
	else if (navigator.appVersion.indexOf("X11") > 0)
		browser.x11 = true;
	else
		browser.osu = true;
}

function reload()
{
	window.history.go(0);
}

// Netscape 4x Überwachung initialisieren
if(browser.ng3)
{
	window.onresize = reload;
}

// Cursor ändern
function swapCursor(object, style)
{
	if (!browser.ns)
	{
		// ie hat eigene bezeichnung für "pointer" cursor
		if (browser.ie && (style == 'pointer'))
			style = 'hand';
		object.style.cursor = style;
	}
}

function toggleLayer(layer_name, sender)
{
	if (browser.ns)
	{
		if(browser.ng5 && document.getElementById(layer_name))
		{
			if (document.getElementById(layer_name).style.visibility == "visible")
				hideLayer(layer_name);
			else
				showLayer(layer_name, sender);
		} else
		if (browser.ng3 && document.layers[layer_name])
		{
			if (document.layers[layer_name].visibility == "show")
				hideLayer(layer_name);
			else
				showLayer(layer_name, sender);
		}
	}
	else
	{
		if(document.all[layer_name])
		{
			if (document.all[layer_name].style.visibility == "visible")
				hideLayer(layer_name);
			else
				showLayer(layer_name, sender);
		}
	}
}

// Layer einblenden
function showLayer(layer_name, object)
{
	var screen_x	= 0;
	var screen_y	= object.offsetHeight;
	var parent		= object;
	var layer;
	
	while (parent)
	{
		screen_x += parent.offsetLeft;
		screen_y += parent.offsetTop;
		parent = parent.offsetParent;
	}
	
	if (browser.ns)
	{
		if(browser.ng5 && document.getElementById(layer_name))
		{
			layer = document.getElementById(layer_name);
			layer.style.visibility = "visible";
		}
		if(browser.ng3 && document.layers[layer_name])
		{
			layer = document.layers[layer_name];
			layer.style.left = screen_x;
			layer.style.top	= screen_y;
			layer.visibility = "show";
		}
	}
	else
	{
		if(document.all[layer_name])
		{
			layer = document.all[layer_name]
			layer.style.visibility = "visible";
		}
	}
	layer.style.left = screen_x + "px";
	layer.style.top	= screen_y + "px";
}

// Layer ausblenden
function hideLayer(layer_name)
{
	if (browser.ns)
	{
		if(browser.ng5 && document.getElementById(layer_name))
		{
			document.getElementById(layer_name).style.visibility = "hidden";
			clearTimer(document.getElementById(layer_name));
		}
		if(browser.ng3 && document.layers[layer_name])
		{
			document.layers[layer_name].visibility = "hide";
			clearTimer(document.layers[layer_name]);
		}
	}
	else
	{
		if(document.all[layer_name])
		{
			document.all[layer_name].style.visibility = "hidden";
			clearTimer(document.all[layer_name]);
		}
	}
}

function mouseoutCheck(object, e)
{
	e = e ? e: window.event;
	var toEl = e.relatedTarget ? e.relatedTarget: e.toElement;
	if ((toEl != object) && !contained(toEl, object))
		object.timer = setTimeout("hideLayer('" + object.id + "');", 200);
}

function contained(oNode, oCont)
{
	if (!oNode) return; // in case alt-tab away while hovering (prevent error)
	while ( oNode = oNode.parentNode )
		if ( oNode == oCont ) return true;
		return false;
}

function clearTimer(object)
{
	if (object.timer) clearTimeout(object.timer);
}

/**
 * Following code is taken from phpMyAdmin (version 2.8.0.2, /js/tbl_change.js)
 * Uses calendar.php also taken from phpMyAdmin (version 2.8.0.2, /calendar.php)
 */

/**
 * Opens calendar window.
 *
 * @param   string      calendar.php parameters
 * @param   string      form name
 * @param   string      field name
 * @param   string      edit type - date/timestamp
 */
function openCalendar(params, form, field, type) {
	// width=400,height=200,status=no,dependent=yes,menubar=no
	window.open("./calendar.php?" + params, "mycalendar", "width=400,height=200,status=no,dependent=yes,menubar=no");
	dateField = eval("document." + form + "." + field);
	dateType = type;
}

var day;
var month;
var year;
var hour;
var minute;
var second;
var clock_set	= 0;

/**
 * Formats number to two digits.
 *
 * @param   int number to format.
 * @param   string type of number
 */
function formatNum2(i, valtype) {
    f = (i < 10 ? '0' : '') + i;
    if (valtype && valtype != '') {
        switch(valtype) {
            case 'month':
                f = (f > 12 ? 12 : f);
                break;

            case 'day':
                f = (f > 31 ? 31 : f);
                break;

            case 'hour':
                f = (f > 24 ? 24 : f);
                break;

            default:
            case 'second':
            case 'minute':
                f = (f > 59 ? 59 : f);
                break;
        }
    }

    return f;
}

/**
 * Formats number to two digits.
 *
 * @param   int number to format.
 * @param   int default value
 * @param   string type of number
 */
function formatNum2d(i, default_v, valtype) {
    i = parseInt(i, 10);
    if (isNaN(i)) return default_v;
    return formatNum2(i, valtype)
}

/**
 * Formats number to four digits.
 *
 * @param   int number to format.
 */
function formatNum4(i) {
    i = parseInt(i, 10)
    return (i < 1000 ? i < 100 ? i < 10 ? '000' : '00' : '0' : '') + i;
}

/**
 * Initializes calendar window.
 */
function initCalendar() {
    if (!year && !month && !day) {
        /* Called for first time */
        if (window.opener.dateField.value) {
            value = window.opener.dateField.value;
            if (window.opener.dateType == 'datetime' || window.opener.dateType == 'date') {
                if (window.opener.dateType == 'datetime') {
                    parts   = value.split(' ');
                    value   = parts[0];

                    if (parts[1]) {
                        time    = parts[1].split(':');
                        hour    = parseInt(time[0],10);
                        minute  = parseInt(time[1],10);
                        second  = parseInt(time[2],10);
                    }
                }
                date        = value.split("-");
                day         = parseInt(date[2],10);
                month       = parseInt(date[1],10) - 1;
                year        = parseInt(date[0],10);
            } else {
                year        = parseInt(value.substr(0,4),10);
                month       = parseInt(value.substr(4,2),10) - 1;
                day         = parseInt(value.substr(6,2),10);
                hour        = parseInt(value.substr(8,2),10);
                minute      = parseInt(value.substr(10,2),10);
                second      = parseInt(value.substr(12,2),10);
            }
        }
        if (isNaN(year) || isNaN(month) || isNaN(day) || day == 0) {
            dt      = new Date();
            year    = dt.getFullYear();
            month   = dt.getMonth();
            day     = dt.getDate();
        }
        if (isNaN(hour) || isNaN(minute) || isNaN(second)) {
            dt      = new Date();
            hour    = dt.getHours();
            minute  = dt.getMinutes();
            second  = dt.getSeconds();
        }
    } else {
        /* Moving in calendar */
        if (month > 11) {
            month = 0;
            year++;
        }
        if (month < 0) {
            month = 11;
            year--;
        }
    }

    if (document.getElementById) {
        cnt = document.getElementById("calendar_data");
    } else if (document.all) {
        cnt = document.all["calendar_data"];
    }

    cnt.innerHTML = "";

    str = ""

    //heading table
    str += '<table class="calendar"><tr><th width="50%">';
    str += '<form method="NONE" onsubmit="return 0">';
    str += '<a href="javascript:month--; initCalendar();">&laquo;</a> ';
    str += '<select id="select_month" name="monthsel" onchange="month = parseInt(document.getElementById(\'select_month\').value); initCalendar();">';
    for (i =0; i < 12; i++) {
        if (i == month) selected = ' selected="selected"';
        else selected = '';
        str += '<option value="' + i + '" ' + selected + '>' + month_names[i] + '</option>';
    }
    str += '</select>';
    str += ' <a href="javascript:month++; initCalendar();">&raquo;</a>';
    str += '</form>';
    str += '</th><th width="50%">';
    str += '<form method="NONE" onsubmit="return 0">';
    str += '<a href="javascript:year--; initCalendar();">&laquo;</a> ';
    str += '<select id="select_year" name="yearsel" onchange="year = parseInt(document.getElementById(\'select_year\').value); initCalendar();">';
    for (i = year - 25; i < year + 25; i++) {
        if (i == year) selected = ' selected="selected"';
        else selected = '';
        str += '<option value="' + i + '" ' + selected + '>' + i + '</option>';
    }
    str += '</select>';
    str += ' <a href="javascript:year++; initCalendar();">&raquo;</a>';
    str += '</form>';
    str += '</th></tr></table>';

    str += '<table class="calendar"><tr>';
    for (i = 0; i < 7; i++) {
        str += "<th>" + day_names[i] + "</th>";
    }
    str += "</tr>";

    var firstDay = new Date(year, month, 1).getDay()-1;
    var lastDay = new Date(year, month + 1, 0).getDate();

    str += "<tr>";

    dayInWeek = 0;
    for (i = 0; i < firstDay; i++) {
        str += "<td>&nbsp;</td>";
        dayInWeek++;
    }
    for (i = 1; i <= lastDay; i++) {
        if (dayInWeek == 7) {
            str += "</tr><tr>";
            dayInWeek = 0;
        }

        dispmonth = 1 + month;

        if (window.opener.dateType == 'datetime' || window.opener.dateType == 'date') {
            actVal = "" + formatNum4(year) + "-" + formatNum2(dispmonth, 'month') + "-" + formatNum2(i, 'day');
        } else {
            actVal = "" + formatNum4(year) + formatNum2(dispmonth, 'month') + formatNum2(i, 'day');
        }
        if (i == day) {
            style = ' class="selected"';
            current_date = actVal;
        } else {
            style = '';
        }
        str += "<td" + style + "><a href=\"javascript:returnDate('" + actVal + "');\">" + i + "</a></td>"
        dayInWeek++;
    }
    for (i = dayInWeek; i < 7; i++) {
        str += "<td>&nbsp;</td>";
    }

    str += "</tr></table>";

    cnt.innerHTML = str;

    // Should we handle time also?
    if (window.opener.dateType != 'date' && !clock_set) {

        if (document.getElementById) {
            cnt = document.getElementById("clock_data");
        } else if (document.all) {
            cnt = document.all["clock_data"];
        }

        str = '';
        init_hour = hour;
        init_minute = minute;
        init_second = second;
        str += '<form method="NONE" class="clock" onsubmit="returnDate(\'' + current_date + '\')">';
        str += '<input id="hour"    type="text" size="2" maxlength="2" onblur="this.value=formatNum2d(this.value, init_hour, \'hour\'); init_hour = this.value;" value="' + formatNum2(hour, 'hour') + '" />:';
        str += '<input id="minute"  type="text" size="2" maxlength="2" onblur="this.value=formatNum2d(this.value, init_minute, \'minute\'); init_minute = this.value;" value="' + formatNum2(minute, 'minute') + '" />:';
        str += '<input id="second"  type="text" size="2" maxlength="2" onblur="this.value=formatNum2d(this.value, init_second, \'second\'); init_second = this.value;" value="' + formatNum2(second, 'second') + '" />';
        str += '<br />';
        str += '<input type="submit" value="' + submit_text + '"/>';
        str += '</form>';

        cnt.innerHTML = str;
        clock_set = 1;
    }

}

/**
 * Returns date from calendar.
 *
 * @param   string     date text
 */
function returnDate(d) {
    txt = d;
    if (window.opener.dateType != 'date') {
        // need to get time
        h = parseInt(document.getElementById('hour').value,10);
        m = parseInt(document.getElementById('minute').value,10);
        s = parseInt(document.getElementById('second').value,10);
        if (window.opener.dateType == 'datetime') {
            txt += ' ' + formatNum2(h, 'hour') + ':' + formatNum2(m, 'minute') + ':' + formatNum2(s, 'second');
        } else {
            // timestamp
            txt += formatNum2(h, 'hour') + formatNum2(m, 'minute') + formatNum2(s, 'second');
        }
    }

    window.opener.dateField.value = txt;
    window.close();
}