function DropDownCal(dayObjName, monthObjName, yearObjName, markDay, markMonth, markYear, blankOptions) {
        //Methods
        this.setMonthDrop = setMonthDrop;
        this.setYearDrop = setYearDrop;
        this.fillInDays = fillInDays;
        this.setSelected = setSelected;

        this.dayObjName = dayObjName;      //Drop-down object for day
        this.monthObjName = monthObjName;  //Drop-down object for month
        this.yearObjName = yearObjName;    //Drop-down object for year
        this.blankOptions = blankOptions;  //Set to 1 if first index of drop-down object should be blank

        //List of items to highlight or select from drop-down
        this.markDay = markDay;
        this.markMonth = markMonth;
        this.markYear = markYear;

        this.maxDayYear = new Array(3);

          this.maxDayYear[0] = new Array(12);

          this.maxDayYear[0][0] = 31;
          this.maxDayYear[0][1] = 28;
          this.maxDayYear[0][2] = 31;
          this.maxDayYear[0][3] = 30;
          this.maxDayYear[0][4] = 31;
          this.maxDayYear[0][5] = 30;
          this.maxDayYear[0][6] = 31;
          this.maxDayYear[0][7] = 31;
          this.maxDayYear[0][8] = 30;
          this.maxDayYear[0][9] = 31;
          this.maxDayYear[0][10] = 30;
          this.maxDayYear[0][11] = 31;
          this.maxDayYear[1] = new Array(12);

          this.maxDayYear[1][0] = 31;
          this.maxDayYear[1][1] = 29;
          this.maxDayYear[1][2] = 31;
          this.maxDayYear[1][3] = 30;
          this.maxDayYear[1][4] = 31;
          this.maxDayYear[1][5] = 30;
          this.maxDayYear[1][6] = 31;
          this.maxDayYear[1][7] = 31;
          this.maxDayYear[1][8] = 30;
          this.maxDayYear[1][9] = 31;
          this.maxDayYear[1][10] = 30;
          this.maxDayYear[1][11] = 31;
          this.maxDayYear[2] = new Array(12);

          this.maxDayYear[2][0] = 31;
          this.maxDayYear[2][1] = 28;
          this.maxDayYear[2][2] = 31;
          this.maxDayYear[2][3] = 30;
          this.maxDayYear[2][4] = 31;
          this.maxDayYear[2][5] = 30;
          this.maxDayYear[2][6] = 31;
          this.maxDayYear[2][7] = 31;
          this.maxDayYear[2][8] = 30;
          this.maxDayYear[2][9] = 31;
          this.maxDayYear[2][10] = 30;
          this.maxDayYear[2][11] = 31;
          //Need to have list of month names since js doesn't give this to us
        this.monthNames = new Array(13);
        this.monthNames[1] = "January";
        this.monthNames[2] = "February";
        this.monthNames[3] = "March";
        this.monthNames[4] = "April";
        this.monthNames[5] = "May";
        this.monthNames[6] = "June";
        this.monthNames[7] = "July";
        this.monthNames[8] = "August";
        this.monthNames[9] = "September";
        this.monthNames[10] = "October";
        this.monthNames[11] = "November";
        this.monthNames[12] = "December";
    }

    /**
     * Create the drop-down elements for month object
     */
    function setMonthDrop() {
        var monthObj = document.getElementById(this.monthObjName);
        monthObj.innerHTML = "";

        if (this.blankOptions == 1) {
            monthObj.innerHTML = "<option value=\"\"> -- </option>";
        }

        for (i=1;i<=12;i++) {
         var marked = this.setSelected(i,this.markMonth);
         monthObj.innerHTML+= "<option value=\"" + i + "\"" + marked + " >" + this.monthNames[i] + "</option>";
        }

        //IE may have trouble with "innerHTML" version so check length
        if (monthObj.options.length == 0) {
            var ieIndex = 0;

            if (this.blankOptions == 1) {
                monthObj.options[ieIndex] = new Option("--", "");
                ieIndex++;
            }

            for (i=1;i<=12;i++) {
                monthObj.options[ieIndex] = new Option(this.monthNames[i], i);
                if (i == this.markMonth) {   //Select default value
                    monthObj.options[ieIndex].selected = true;
                }

                ieIndex++;
            }
        }  //end IE block
    }

    function setYearDrop() {
        var tmpDate = new Date();
        var thisYear = tmpDate.getFullYear();
        var yearObj = document.getElementById(this.yearObjName);
        yearObj.innerHTML = "";

        if (this.blankOptions == 1) {
            yearObj.innerHTML = "<option value=\"\"> -- </option>";
        }

        for(i=-1;i<=1;i++) {
          var marked = this.setSelected((thisYear + i),this.markYear);
          var showYear = (thisYear + i).toString();
          yearObj.innerHTML+= "<option value=\"" + showYear + "\"" + marked + " >" + showYear + "</option>";
        }

        //IE may have trouble with "innerHTML" version so check length
        if (yearObj.options.length == 0) {
            var ieIndex = 0;

            if (this.blankOptions == 1) {
                yearObj.options[ieIndex] = new Option("--", "");
                ieIndex++;
            }

            for (i=-1;i<=1;i++) {
                var showYear = (thisYear + i).toString();
                yearObj.options[ieIndex] = new Option(showYear, showYear);
                
                if ((i + thisYear) == this.markYear) {   //Select default value
                    yearObj.options[ieIndex].selected = true;
                }

                ieIndex++;
            }
        } //end IE block
    }

    function fillInDays() {
        var monthIndex = document.getElementById(this.monthObjName).selectedIndex;
        var yearIndex = document.getElementById(this.yearObjName).selectedIndex;
        var dayObj = document.getElementById(this.dayObjName);

        //If a blank is allowed, selectedIndex has to be decreased by 1
        if (this.blankOptions) {
            monthIndex--;
            yearIndex--;
        }

        document.getElementById(this.dayObjName).innerHTML = "";

        if (this.blankOptions == 1) {
            dayObj.innerHTML = "<option value=\"\"> -- </option>";
        }

        for (i=1;i<=this.maxDayYear[yearIndex][monthIndex];i++) {
            var marked = this.setSelected(i,this.markDay);
            dayObj.innerHTML += "<option value=\"" + i + "\"" + marked + " >" + i + "</option>";
        }

        //IE may have trouble with "innerHTML" version so check length
        if (dayObj.options.length == 0) {
            var ieIndex = 0;

            if (this.blankOptions) {
                dayObj.options[ieIndex] = new Option("--", "");
            }

            for (i=1;i<=this.maxDayYear[yearIndex][monthIndex];i++) {
                dayObj.options[ieIndex] = new Option(i, i);

                if (i == this.markDay) {   //Select default value
                    dayObj.options[ieIndex].selected = true;
                }
 
                ieIndex++;
            }
        }  //end IE block
    }

    function setSelected(a, b) {
        if (!a || !b) return "";
        if (a.toString().length == b.toString.length) { return ""; }
        else { return (a == b) ? "selected" : ""; }
    }