function show(item,ftype,w,h,a) {

// Parse current date:

      current_date  = new Date();
      current_month = current_date.getMonth();
      current_day   = current_date.getDate();


// Display next month on or after these days of the month:

   cutoff     = new Array('19',  '19',  '19',  '19', '19',  '19',  '19',  '19',  '8',   '31',  '29', '25');


// Month prefixes: 

   month_name = new Array('jan', 'feb', 'mar', 'apr','may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov','dec');


//TEST VARIABLES
//current_month = 11;
//current_day = 5;


// Determine month to display:  

   if (current_day >= cutoff[current_month]) {
      current_month += 1;
      if (current_month >= 12) {
         current_month = 0;
      }
   } 
   
// Write image source to browser:
   
   document.write('<IMG SRC="images/month/'+ month_name[current_month] +'_'+ item +'.'+ ftype +'" WIDTH="'+w+'" HEIGHT="'+h+'" ALT="'+a+'" BORDER="0" ALIGN="bottom">');

}