<!--
// $Id: browse.js,v 1.23 2005-09-15 19:33:36 dsacramore Exp $


function takeYear(theDate){
 x = theDate.getYear();
 var y = x % 100;
 y += (y < 38) ? 2000 : 1900;
 return y;
}


date = new Date();
cyear = takeYear(date);  // current year
cmonth = date.getMonth() + 1;       // current month
cday = date.getDate();          // current day


// Initialize and Populate month name and value array
marray = new Array();
marray[0] = new Option('Jan', 1);
marray[1] = new Option('Feb', 2);
marray[2] = new Option('Mar', 3);
marray[3] = new Option('Apr', 4);
marray[4] = new Option('May', 5);
marray[5] = new Option('Jun', 6);
marray[6] = new Option('Jul', 7);
marray[7] = new Option('Aug', 8);
marray[8] = new Option('Sept', 9);
marray[9] = new Option('Oct', 10);
marray[10] = new Option('Nov', 11);
marray[11] = new Option('Dec', 12);


mdays = new Array();
mdays[0] = 31;
// mdays[1] = leapCheck(cyear);
mdays[2] = 31;
mdays[3] = 30;
mdays[4] = 31;
mdays[5] = 30;
mdays[6] = 31;
mdays[7] = 31;
mdays[8] = 30;
mdays[9] = 31;
mdays[10] = 30;
mdays[11] = 31;


// Initialize and populate day name and value array
darray = new Array();
for (i = 0; i < 31; i++){
 darray[i] = new Option(i+1, i+1);
}


// Check for leap year
function leapCheck(year){
 if ((year % 4 == 0) && !(year % 400 == 0)) return 29;
 else return 28;
} // leapCheck


function dim(mv, yv) {
 if (mv == 2) days_in_month = leapCheck(yv);
 else days_in_month = mdays[mv - 1];

 return(days_in_month);
}


// Initialize year fields for current and next 2 years
function yearlist(field, start_year, start_month){

 for (i = 0; i < 2 ; i++){
  document.browse[field].options[i] = null;
 }

 for (i = cyear; i <= cyear + 2; i++){
  document.browse[field].options[i - cyear] = new Option(i, i);
 }

 document.browse[field].selectedIndex = start_year - cyear;
 monthlist(document.browse, start_month, (field+1));
} // yearlist


// Adjusts number of months in select object according to year
function monthlist(form, start_month, field){
 year_value = form[field-1].options[form[field-1].selectedIndex].value;

 // Clear existing options
 while (document.browse[field].options[0] != null){
  for (i = 0; i < document.browse[field].options.length; i++){
   document.browse[field].options[i] = null;
  }
 }

 // If current year, only show remaining months, else show all 12
 if (year_value == cyear){
  for (i = cmonth; i <= 12; i++){
   document.browse[field].options[i-cmonth] = new Option(marray[i-1].text, marray[i-1].value);
  }
 }
 else {
  for (i = 0; i < 12; i++){
   document.browse[field].options[i] = new Option(marray[i].text, marray[i].value);
  }
 }

//alert('field: ' + field + '\nstart_month: ' + start_month + '\ncmonth: ' + cmonth);

 // the following is a hack made during launch (sorry)
 if (start_month == 99){
  document.browse[field].selectedIndex = 0;
 }
 else if (year_value == cyear){
  document.browse[field].selectedIndex = start_month - cmonth;
 }
 else{
  document.browse[field].selectedIndex = start_month - 1;
 }

 daylist(document.browse, (field+1)); // adjust days to match month

} // monthlist


// Adjusts number of days in starting day select field according to month
function daylist(form, field){
 year_value = form[field-2].options[form[field-2].selectedIndex].value;
 month_value = form[field-1].options[form[field-1].selectedIndex].value;

 days_in_month = dim(month_value, year_value);

 // Clear existing options 
 while (document.browse[field].options[0] != null){
  for (i = 0; i < document.browse[field].options.length; i++){
   document.browse[field].options[i] = null;
  }
 }

 // If current month, only show remaining days, else show all days
 if ((month_value == (cmonth)) && (year_value == cyear)){
  for (i = cday; i <= days_in_month; i++){
   document.browse[field].options[i-cday] = new Option(i, i);
  }
 }
 else {
  for (i = 1; i <= days_in_month; i++){
   document.browse[field].options[i-1] = new Option(i, i);
  }
 }

 document.browse[field].selectedIndex = 0;

} // daylist


////////////// CODE ABOVE IS FOR DATE FIELD CALCULATION ///////////
///////////////////////////////////////////////////////////////////
////////////// CODE BELOW IS FOR FIELD INITIALIZATION /////////////

function check_for_range(form){
 if (form.rdc_select.options[form.rdc_select.selectedIndex].value == "range") {
    if(document.browse[0].value.indexOf("enter city or zip code")!=-1){
       document.browse[0].value="";
       }
  // logic for calculating current date + 7 days
  rday = cday + 7;
  rmonth = cmonth;
  ryear = cyear;

  days_in_month = dim(rmonth, ryear);

  if ((rday) > days_in_month) {
   rday = rday - days_in_month;
   if (rmonth + 1 > 12) {
    ryear += 1;
    rmonth = 1;
   }
   else rmonth += 1;
  }

  rcat = form.category.options[form.category.selectedIndex].value;
  rarea = form.area.value;
  // loads range page with todays date and date + 7
  if(document.browse.teVal){
  document.location = "/exchange/buy/browse?category=" + rcat + "&area=" + rarea + "&rdc_syear=" + cyear + "&rdc_smonth=" + cmonth + "&rdc_sday=" + cday + "&rdc_eyear=" + ryear + "&rdc_emonth=" + rmonth + "&rdc_eday=" + rday + "&type=range";
     }else{
         switch(rcat){
                case '16': 
                   document.location = "/broadway?tm_link=tm_home_browse";
                case '17':
                   document.location = "/offbroadway?tm_link=tm_home_browse";
                default:   
                   document.location = "/browse?category=" + rcat + "&area=" + rarea + "&rdc_syear=" + cyear + "&rdc_smonth=" + cmonth + "&rdc_sday=" + cday + "&rdc_eyear=" + ryear + "&rdc_emonth=" + rmonth + "&rdc_eday=" + rday + "&type=range";
                  }
        }
 }
} // check for range


function set_field(field_index, handed_var) {
 var i=0;
 var field_len = document.browse[field_index].length;

 
while ((i != field_len) && (document.browse[field_index].options[i].value != handed_var)){
   i += 1;
 }

// if no matches, set to first index
 if (i == field_len){
  i = 0;
 }

 document.browse[field_index].selectedIndex = i;
}


function init_range(cat, sy, sm, sd, ey, em, ed){
  yearlist(2, sy, sm);
  yearlist(5, ey, em);

  rdc_arr = new Array();
  rdc_arr[0] = cat;
  rdc_arr[2] = sy;
  rdc_arr[3] = sm;
  rdc_arr[4] = sd;
  rdc_arr[5] = ey;
  rdc_arr[6] = em;
  rdc_arr[7] = ed;

  for (k=0; k < rdc_arr.length ; k++){
   if (k != 1){
    set_field(k, rdc_arr[k]);
   }
  }

}


function init_selected(cat, select){
  set_field(1, cat);
  set_field(2, select);
}


function init_box(cat, select){
  set_field(1, cat);
  set_field(2, select);
}


//-->