var numberOfYears=5;
var startHour=9;
var finishHour=17;
var date_arr = new Array;
var days_arr = new Array;
var thedate = new Date( );
var startYear = thedate.getYear( );
    
if(startYear < 2000) 
{
        startYear += 1900;
}
    
var finishYear = startYear+numberOfYears+1; 
var month = thedate.getMonth( ) + 1;
var day = thedate.getDate( );

date_arr[0]=new Option("January",31);
date_arr[1]=new Option("February",28);
date_arr[2]=new Option("March",31);
date_arr[3]=new Option("April",30);
date_arr[4]=new Option("May",31);
date_arr[5]=new Option("June",30);
date_arr[6]=new Option("July",31);
date_arr[7]=new Option("August",30);
date_arr[8]=new Option("September",30);
date_arr[9]=new Option("October",31);
date_arr[10]=new Option("November",30);
date_arr[11]=new Option("December",30);

function fill_select(f)
{
  
        document.writeln("<SELECT name=\"months\"onchange=\"update_days(form)\">");
        for(x=0;x<12;x++)
        {
               document.writeln("<OPTION value=\""+date_arr[x].value+"#"+date_arr[x].text+"\">"+date_arr[x].text);
          
        }
 
        document.writeln("</SELECT>&nbsp;<SELECT name=\"days\"></SELECT>");
        selection=f.months[f.months.selectedIndex].value;
    
}

function update_days(f)
{
       temp=f.days.selectedIndex;
    for(x=days_arr.length;x>0;x--)
    {
         days_arr[x]=null;
         f.days.options[x]=null;
     }
        
    selection=parseInt(f.months[f.months.selectedIndex].value);
    ret_val = 0;
    if(f.months[f.months.selectedIndex].value == "28#February")
    {
           year=parseInt(f.years.options[f.years.selectedIndex].value);
        if (year % 4 != 0 || year % 100 == 0 ) 
        {
            ret_val=0;
        }
        else
        {
             if (year % 400 == 0)  
             {
                 ret_val=1;
             }
             else
             {
                 ret_val=1;
             }
        }
             
       }
       selection = selection + ret_val;
       for(x=1;x < selection+1;x++)
        {
                days_arr[x-1]=new Option(x);
                f.days.options[x-1]=days_arr[x-1];
        }
        
        if (temp == -1) 
        {
            f.days.options[0].selected=true;
        }
        else
        {
             f.days.options[temp].selected=true;
        }
        
    }

    function year_install(f)
    {
        document.writeln("<SELECT name=\"years\" onchange=\"update_days(form)\">")
        for(x=startYear;x<finishYear;x++) document.writeln("<OPTION value=\""+x+"\">"+x);
        document.writeln("</SELECT>");
        update_days(f)
    
    }
    
    function time_install(f)
    {
        document.writeln("<SELECT name=\"time\">")
        for(x=startHour;x<finishHour;x++) 
        {
            for(y=0;y<46;y=y+15) 
            {
                if(y==0)
                {
                    document.writeln("<OPTION value=\""+x+":00\">"+x+":00");
                }
                else
                {
                    document.writeln("<OPTION value=\""+x+":"+y+"\">"+x+":"+y);
                }
            }
        }
        document.writeln("</SELECT>");
       
    }