calendar_param.js

根据图书馆日常图书管理工作的需求和图书借阅的管理流程

    }
}


// SET THE GLOBAL DATE TO THE NEXT MONTH AND REDRAW THE CALENDAR
function setNextMonth() {

    var year = top.newWin.frames['topCalFrame'].document.calControl.year.value;

    if (isFourDigitYear(year)) {
        var month = top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex;

        // IF MONTH IS DECEMBER, SET MONTH TO JANUARY AND INCREMENT THE YEAR
        if (month == 11) {
            month = 0;
            year++;
            calDate.setFullYear(year);
            top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
        }
        else {
            month++;
        }
        calDate.setMonth(month);
        top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex = month;
        writeCalendar();
    }
}


// SET THE GLOBAL DATE TO THE NEXT YEAR AND REDRAW THE CALENDAR
function setNextYear() {
    var year  = top.newWin.frames['topCalFrame'].document.calControl.year.value;
    if (isFourDigitYear(year)) {
        year++;
        calDate.setFullYear(year);
        top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
        writeCalendar();
    }
}


// GET NUMBER OF DAYS IN MONTH
function getDaysInMonth()  {

    var days;
    var month = calDate.getMonth()+1;
    var year  = calDate.getFullYear();

    // RETURN 31 DAYS
    if (month==1 || month==3 || month==5 || month==7 || month==8 ||
        month==10 || month==12)  {
        days=31;
    }
    // RETURN 30 DAYS
    else if (month==4 || month==6 || month==9 || month==11) {
        days=30;
    }
    // RETURN 29 DAYS
    else if (month==2)  {
        if (isLeapYear(year)) {
            days=29;
        }
        // RETURN 28 DAYS
        else {
            days=28;
        }
    }
    return (days);
}


// CHECK TO SEE IF YEAR IS A LEAP YEAR
function isLeapYear (Year) {

    if (((Year % 4)==0) && ((Year % 100)!=0) || ((Year % 400)==0)) {
        return (true);
    }
    else {
        return (false);
    }
}


// ENSURE THAT THE YEAR IS FOUR DIGITS IN LENGTH
function isFourDigitYear(year) {

    if (year == null || year.match(/^[0-9]{4}$/) == null){
        top.newWin.frames['topCalFrame'].document.calControl.year.value = calDate.getFullYear();
        top.newWin.frames['topCalFrame'].document.calControl.year.select();
        top.newWin.frames['topCalFrame'].document.calControl.year.focus();
    }
    else {
        return true;
    }
}


// BUILD THE MONTH SELECT LIST
function getMonthSelect() {

    monthArray = new Array(L_January, L_February, L_March, L_April, L_May, L_June,
                           L_July, L_August, L_September, L_October, L_November, L_December);


    // DETERMINE MONTH TO SET AS DEFAULT
    var activeMonth = calDate.getMonth();

    // START HTML SELECT LIST ELEMENT
    monthSelect = "<SELECT NAME='month' onChange='parent.opener.setCurrentMonth()'>";

    // LOOP THROUGH MONTH ARRAY
    for (i in monthArray) {

        // SHOW THE CORRECT MONTH IN THE SELECT LIST
        if (i == activeMonth) {
            monthSelect += "<OPTION SELECTED>" + monthArray[i] + "\n";
        }
        else {
            monthSelect += "<OPTION>" + monthArray[i] + "\n";
        }
    }
    monthSelect += "</SELECT>";

    // RETURN A STRING VALUE WHICH CONTAINS A SELECT LIST OF ALL 12 MONTHS
    return monthSelect;
}


// SET DAYS OF THE WEEK DEPENDING ON LANGUAGE
function createWeekdayList() {

 weekdayArray = new Array(L_Su,L_Mo,L_Tu,L_We,L_Th,L_Fr,L_Sa);


    // START HTML TO HOLD WEEKDAY NAMES IN TABLE FORMAT
    var weekdays = "<TR BGCOLOR='" + headingCellColor + "'>";

    // LOOP THROUGH WEEKDAY ARRAY
    for (i in weekdayArray) {

        weekdays += "<TD class='heading' align=center>" + weekdayArray[i] + "</TD>";
    }
    weekdays += "</TR>";

    // RETURN TABLE ROW OF WEEKDAY ABBREVIATIONS TO DISPLAY ABOVE THE CALENDAR
    return weekdays;
}


// PRE-BUILD PORTIONS OF THE CALENDAR (FOR PERFORMANCE REASONS)
function buildCalParts() {

    // GENERATE WEEKDAY HEADERS FOR THE CALENDAR
    weekdays = createWeekdayList();

    // BUILD THE BLANK CELL ROWS
    blankCell = "<TD align=center bgcolor='" + cellColor + "'>&nbsp;&nbsp;&nbsp;</TD>";

    // BUILD THE TOP PORTION OF THE CALENDAR PAGE USING CSS TO CONTROL SOME DISPLAY ELEMENTS
    calendarBegin =
        "<HTML>" +
        "<HEAD>" +
        // STYLESHEET DEFINES APPEARANCE OF CALENDAR
        "<STYLE type='text/css'>" +
        "<!--" +
        "TD.heading { text-decoration: none; color:" + headingTextColor + "; font: " + headingFontStyle + "; }" +
        "A.focusDay:link { color: " + focusColor + "; text-decoration: none; font: " + fontStyle + "; }" +
        "A.focusDay:hover { color: " + focusColor + "; text-decoration: none; font: " + fontStyle + "; }" +
        "A.focusDay:visited { color: " + focusColor + "; text-decoration: none; font: " + fontStyle + "; }" +
        "A.weekday:link { color: " + dateColor + "; text-decoration: none; font: " + fontStyle + "; }" +
        "A.weekday:hover { color: " + hoverColor + "; font: " + fontStyle + "; }" +
        "A.weekday:visited { color: " + dateColor + "; text-decoration: none; font: " + fontStyle + "; }" +
        "-->" +
        "</STYLE>" +

        "</HEAD>" +
        "<BODY BGCOLOR='" + bottomBackground + "' onload='javascript:self.focus()'>";
    if (document.getElementById) { // ns6 & ie
        calendarBegin +=
            "<DIV ID='bottomDiv'>";
    }
    calendarBegin +=
        "<CENTER>";

        // NAVIGATOR NEEDS A TABLE CONTAINER TO DISPLAY THE TABLE OUTLINES PROPERLY
        if (isNav) {
            calendarBegin +=
                "<TABLE CELLPADDING=0 CELLSPACING=1 BORDER=" + tableBorder + " ALIGN=CENTER BGCOLOR='" + tableBGColor + "'><TR><TD>";
        }

        // BUILD WEEKDAY HEADINGS
        calendarBegin +=
            "<TABLE CELLPADDING=0 CELLSPACING=1 BORDER=" + tableBorder + " ALIGN=CENTER BGCOLOR='" + tableBGColor + "'>" +
            weekdays +
            "<TR>";


    // BUILD THE BOTTOM PORTION OF THE CALENDAR PAGE
    calendarEnd = "";

        // WHETHER OR NOT TO DISPLAY A THICK LINE BELOW THE CALENDAR
        if (bottomBorder) {
            calendarEnd += "<TR></TR>";
        }

        // NAVIGATOR NEEDS A TABLE CONTAINER TO DISPLAY THE BORDERS PROPERLY
        if (isNav) {
            calendarEnd += "</TD></TR></TABLE>";
        }

        // END THE TABLE AND HTML DOCUMENT
        calendarEnd +=
            "</TABLE>" +
            "</CENTER>";
		if (document.getElementById) { // ns6 & ie
            calendarEnd +=
            "</DIV>";
		}
		calendarEnd +=
            "</BODY>" +
            "</HTML>";
}


// REPLACE ALL INSTANCES OF find WITH replace
// inString: the string you want to convert
// find:     the value to search for
// replace:  the value to substitute
//
// usage:    jsReplace(inString, find, replace);
// example:  jsReplace("To be or not to be", "be", "ski");
//           result: "To ski or not to ski"
//
function jsReplace(inString, find, replace) {

    var outString = "";

    if (!inString) {
        return "";
    }

    // REPLACE ALL INSTANCES OF find WITH replace
    if (inString.indexOf(find) != -1) {
        // SEPARATE THE STRING INTO AN ARRAY OF STRINGS USING THE VALUE IN find
        t = inString.split(find);

        // JOIN ALL ELEMENTS OF THE ARRAY, SEPARATED BY THE VALUE IN replace
        return (t.join(replace));
    }
    else {
        return inString;
    }
}


// JAVASCRIPT FUNCTION -- DOES NOTHING (USED FOR THE HREF IN THE CALENDAR CALL)
function doNothing() {
}


// ENSURE THAT VALUE IS TWO DIGITS IN LENGTH
function makeTwoDigit(inValue) {

    var numVal = parseInt(inValue, 10);

    // VALUE IS LESS THAN TWO DIGITS IN LENGTH
    if (numVal < 10) {

        // ADD A LEADING ZERO TO THE VALUE AND RETURN IT
        return("0" + numVal);
    }
    else {
        return numVal;
    }
}


// SET FIELD VALUE TO THE DATE SELECTED AND CLOSE THE CALENDAR WINDOW
function returnDate(inDay)
{
    // inDay = THE DAY THE USER CLICKED ON
    calDate.setDate(inDay);

    // SET THE DATE RETURNED TO THE USER
    var day           = calDate.getDate();
    var month         = calDate.getMonth()+1;
    var year          = calDate.getFullYear();
    
    // SET THE VALUE OF THE FIELD THAT WAS PASSED TO THE CALENDAR
    var dt = new Date(year, month - 1, day, 0, 0, 0);
    calDateField.value = GLDT(dt,true, false);

    calHiddenField.value = "Date(";
    calHiddenField.value += year;
    calHiddenField.value += ",";
    calHiddenField.value += month;
    calHiddenField.value += ",";
    calHiddenField.value += day;
    calHiddenField.value += ")";

    // GIVE FOCUS BACK TO THE DATE FIELD
    calDateField.focus();

    // CLOSE THE CALENDAR WINDOW
    top.newWin.close()
}

var gHour = "0";
var gMin  = "0";
var gSec  = "0";
var regDateTimePrompt  = /^(D|d)(A|a)(T|t)(E|e)(T|t)(I|i)(M|m)(E|e) *\( *\d{4} *, *(0?[1-9]|1[0-2]) *, *((0?[1-9]|[1-2]\d)|3(0|1)) *, *([0-1]?\d|2[0-3]) *, *[0-5]?\d *, *[0-5]?\d *\)$/
function ParseDateTimePrompt(inDate)
{
    if ( regDateTimePrompt.test ( inDate ) )
    {
        var sDate = inDate.substr ( inDate.indexOf("(")+1 );    //move past "DateTime ("
        sDate = sDate.substr ( 0, sDate.lastIndexOf(")") );     //remove trailing ")"
        var dateArray = sDate.split (',');
        var _date = new Date ( dateArray[0], Number(dateArray[1]) - 1, dateArray[2] );
        gHour = dateArray[3]; gMin = dateArray[4]; gSec = dateArray[5];
        return _date;
    }
    return new Date ();
}

var regDatePrompt = /^(D|d)(A|a)(T|t)(E|e) *\( *\d{4} *, *(0?[1-9]|1[0-2]) *, *((0?[1-9]|[1-2]\d)|3(0|1)) *\)$/
function ParseDatePrompt(inDate)
{
    if ( regDatePrompt.test ( inDate ) )
    {
        var sDate = inDate.substr ( inDate.indexOf("(")+1 );    //move past "Date ("
        sDate = sDate.substr ( 0, sDate.lastIndexOf(")") );     //remove trailing ")"
        var dateArray = sDate.split (',');
        return new Date ( dateArray[0], Number(dateArray[1]) - 1, dateArray[2] );
    }
    return new Date();
}

function ParseDate(inDate, bDateTimeFormat)
{
    var result;
    
    if (bDateTimeFormat == true) {
        result = ParseDateTimePrompt(inDate);
    } else {
        result = ParseDatePrompt(inDate);
    }
    
    return result;
}