Programalama > JAVA SCRIPT

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<script language="JavaScript">
//This Java Script is free to the domain. All I ask is you send me an
//email to
//ddelong@csci.csusb.edu to let me know that you will be using it. This
//message must be included with the script if you copy it.
<!-- for sucky browsers
Months = new Array(12);
Months[0] = "January";
Months[1] = "February";
Months[2] = "March";
Months[3] = "April";
Months[4] = "May";
Months[5] = "June";
Months[6] = "July";
Months[7] = "August";
Months[8] = "September";
Months[9] = "October";
Months[10] = "November";
Months[11] = "December";
function PadSpaces(TheString)
{
        var Spaces = "             ";
        len = Math.round((9 - TheString.length)/2);
        return Spaces.substring(0,len) + TheString;
}
function NumLeapYears(StartYear, EndYear)
{
        var LeapYears, i;
        if (EndYear >= StartYear){
                for(LeapYears = 0; StartYear <= EndYear; StartYear++)
                if (IsLeapYear(StartYear)) LeapYears++;
        }else{
        for(LeapYears = 0; EndYear <= StartYear; EndYear++)
                if (IsLeapYear(EndYear)) LeapYears++;
        }
        return LeapYears;
}
function IsLeapYear(Year)
{
        if(Math.round(Year/4) == Year/4){
                if(Math.round(Year/100) == Year/100){
                        if(Math.round(Year/400) == Year/400)
                                return true;
                        else return false;
                }else return true;
        }
        return false;
}
function Trim(TheString)
{
        var len;
        len = TheString.length;
        while(TheString.substring(0,1) == " "){ //trim left
                TheString = TheString.substring(1, len);
                len = TheString.length;
        }
        while(TheString.substring(len-1, len) == " "){ //trim right
                TheString = TheString.substring(0, len-1);
                len = TheString.length;
        }
        return TheString;
}
function DetermineMonthIdx()
{
        var i, month, month_s, len;
        month = Trim(document.calform.elements[4].value);
        len = month.length;
        for( i = 0; i <12; i++){
                month_s = Months[i].substring(0,len);
                if (month_s.toUpperCase() == month.toUpperCase())
                        return (i);
        }
        return -1;
}
function FindNewYearStartingDay(Year)
{
        var LeapYears, Years, Day;
        LeapYears = NumLeapYears(1995, Year);
        if  (Year >=1995)
                Years = (Year -1995)+LeapYears;
        else    Years = (Year -1995)-LeapYears;
        if  (Year >=1995)
                Day = Math.round(((Years/7 - Math.floor(Years/7))*7)+.1);
        else    Day = Math.round(((Years/7 -  Math.ceil(Years/7))*7)-.1);
        if (Year >=1995){
                if(IsLeapYear(Year)) Day--;
        }else Day += 7;
        if(Day < 0) Day = 6;
        if(Day > 6) Day = 0;
        return Day;
}
function FindNumDaysInMonth(Year, Month)
{
        if(Month == 1){
                if(IsLeapYear(Year)) return 29;
                else return 28;
        }else{
                if(Month >6) Month++;
                if(Month/2 == Math.round(Month/2))  return 31;
        }
 return 30;
}
function FindMonthStartDay(NewYearDay, Year, Month)
{
        var MonthStartDay;
        AddArray = new Array(12);
        AddArray[0]=0;AddArray[1]=3;AddArray[2]=3;AddArray[3]=6;
        AddArray[4]=1;AddArray[5]=4;AddArray[6]=6;AddArray[7]=2;
        AddArray[8]=5;AddArray[9]=0;AddArray[10]=3;AddArray[11]=5;
        MonthStartDay = NewYearDay + AddArray[Month];
        if(IsLeapYear(Year)  && (Month ) > 1) MonthStartDay ++;
        if (MonthStartDay > 6) MonthStartDay -= 7;
        return MonthStartDay;
}
function  FillCalendar()
{
        var Year, Month, Midx, NewYearDay, MonthStartDay;
        var NumDaysInMonth, i, t;
        Year = parseFloat(document.calform.elements[1].value);
        Month = document.calform.elements[4].value;
        Midx  =  DetermineMonthIdx();
        if (Midx == -1){
                alert ("Can't recognize that month");
                return;
        }
        NewYearDay = FindNewYearStartingDay(Year);
        MonthStartDay = FindMonthStartDay(NewYearDay, Year,  Midx);
        NumDaysInMonth = FindNumDaysInMonth(Year, Midx);
        for(i = 6;  i < 43;  i++){
                t = i-5-MonthStartDay;
                if ( t >= 1  &&  t <= NumDaysInMonth)
                        document.calform.elements[i].value =t;
                else document.calform.elements[i].value = "";
        }
}
function IncDecYear(val)
{
        var valNum = parseInt(val);
        var valNum2 = parseInt(document.calform.elements[1].value)
        document.calform.elements[1].value = valNum2 + valNum;
        FillCalendar()
}
function IncDecMonth(val)
{
        var valNum = parseInt(val);
        var Midx  =  DetermineMonthIdx();
        Midx += valNum;
        if(Midx > 11) Midx = 0;
        if(Midx < 0)  Midx = 11;
        document.calform.elements[4].value = PadSpaces(Months[Midx]);
        FillCalendar()
}
// -->
</script>
</HEAD><BODY><table border=1 bgcolor="#000000"><tr><td align=center>
<table border=0  cellspacing=0>
<form name="calform">
<tr><td align=center bgcolor="#000000"><input type=button value="<<" onClick="IncDecYear(-1)"></td>
        <th bgcolor="#aaaaaa" colspan=5 align=center><input size=4 type=text value="1993"></th>
        <td align=center bgcolor="#000000"><input type=button value=">>" onClick="IncDecYear(1)"></td></tr>
<tr><td align=center bgcolor="#000000"><input type=button value="<<" onClick="IncDecMonth(-1)"></td>
        <th bgcolor="#aaaaaa" colspan=5 align=center><input size=9 type=text value=" January "></th>
        <td align=center bgcolor="#000000"><input type=button value=">>" onClick="IncDecMonth(1)"></td></tr>
<tr><th  bgcolor="#ffcccc">Sun</td>
        <th  bgcolor="#ccccff">Mon</td>
        <th  bgcolor="#ccccff">Tue</td>
        <th  bgcolor="#ccccff">Wed</td>
        <th  bgcolor="#ccccff">Thu</td>
        <th  bgcolor="#ccccff">Fri</td>
        <th  bgcolor="#ccccff">Sat</td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#ccccff" ><input type=text size=2></td></tr>
<tr><td  bgcolor="#ffcccc"><input type=text size=2></td>
        <td  bgcolor="#ccccff"><input type=text size=2></td>
        <td  bgcolor="#aaaaaa" colspan=5><input type=text></td></tr>
</form>
</table>
</td></tr></table>
<script language="JavaScript">
<!--
//include this script segment if you want to set the calendar to today's date.
//this MUST come after the tabled form which contains the calendar
//set calendar to today's date
        myDate = new Date();
        var Month = parseInt(myDate.getMonth());
        document.calform.elements[1].value = 1900 + myDate.getYear();
        document.calform.elements[4].value = PadSpaces(Months[Month]);
        document.calform.elements[43].value = "Today is: " +
                myDate.getDate() + " " + Months[Month].substring(0,3)
                 + ", " + (1900 + myDate.getYear());
        FillCalendar();
// -->
</script>


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