//popup window
function popupHelp(page_url){
win_name= "_help";
win_options= "toolbars=no,status=no,left=10,top=10,width=550,height=400,scrollbars=1,resize=yes,resizable";
window.open(page_url,win_name,win_options);
}

function emailPage(page_url){
win_name= "_help";
win_options= "toolbars=no,status=no,left=10,top=10,width=550,height=400,scrollbars=1,resize=yes,resizable";
window.open(page_url,win_name,win_options);
}

function popup(page_url,win_width,win_height){
win_name= "_popup";
win_options= "toolbars=no,status=no,left=10,top=10,width="+win_width+",height="+win_height+",scrollbars=1,resize=yes,resizable";
window.open(page_url,win_name,win_options);
}

function ChangePrice(listid,inputid,price,bprice)
{
  dp=0;
  pd=0;
  p=listid.options[listid.selectedIndex].value.split("@");
  inputid.value = p[0];
  for(i=0;i<document.upgrade.elements.length;i++)
  {
    if (document.upgrade.elements[i].type=="select-one")
    {
      p=document.upgrade.elements[i].options[document.upgrade.elements[i].selectedIndex].value.split("@");
      if (p[1])
      {
      pd += eval(p[0]);
      }
    }
  }
  price.value = (Math.round((eval(dp) + eval(pd))*100))/100+bprice;
}

// Title: Timestamp picker
// Description: See the demo at url
// URL: http://www.geocities.com/tspicker/
// Version: 1.0.a (Date selector only)
// Date: 12-12-2001 (mm-dd-yyyy)
// Author: Denis Gritcyuk <denis@softcomplex.com>; <tspicker@yahoo.com>
// Notes: Permission given to use this script in any kind of applications if
//    header lines are left unchanged. Feel free to contact the author
//    for feature requests and/or donations

function show_calendar4(str_target, str_datetime) {
        var arr_months = ["January", "February", "March", "April", "May", "June",
                "July", "August", "September", "October", "November", "December"];
        var week_days = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
        var n_weekstart = 1; // day week starts from (normally 0 or 1)

        var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt4(str_datetime));
        var dt_prev_month = new Date(dt_datetime);
        dt_prev_month.setMonth(dt_datetime.getMonth()-1);
        var dt_next_month = new Date(dt_datetime);
        dt_next_month.setMonth(dt_datetime.getMonth()+1);
        var dt_firstday = new Date(dt_datetime);
        dt_firstday.setDate(1);
        dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
        var dt_lastday = new Date(dt_next_month);
        dt_lastday.setDate(0);

        // html generation (feel free to tune it for your particular application)
        // print calendar header
        var str_buffer = new String (
                "<html>\n"+
                "<head>\n"+
                "        <title>Calendar</title>\n"+
                "</head>\n"+
                "<body bgcolor=\"White\">\n"+
                "<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
                "<tr><td bgcolor=\"#4682B4\">\n"+
                "<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
                "<tr>\n        <td bgcolor=\"#4682B4\"><a href=\"javascript:window.opener.show_calendar4('"+
                str_target+"', '"+ dt2dtstr4(dt_prev_month)+"');\">"+
                "<img src=\"ps_image/cal_prev.gif\" width=\"16\" height=\"16\" border=\"0\""+
                " alt=\"previous month\"></a></td>\n"+
                "        <td bgcolor=\"#4682B4\" colspan=\"5\">"+
                "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
                +arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
                "        <td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:window.opener.show_calendar4('"
                +str_target+"', '"+dt2dtstr4(dt_next_month)+"');\">"+
                "<img src=\"ps_image/cal_next.gif\" width=\"16\" height=\"16\" border=\"0\""+
                " alt=\"next month\"></a></td>\n</tr>\n"
        );

        var dt_current_day = new Date(dt_firstday);
        // print weekdays titles
        str_buffer += "<tr>\n";
        for (var n=0; n<7; n++)
                str_buffer += "        <td bgcolor=\"#87CEFA\">"+
                "<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+
                week_days[(n_weekstart+n)%7]+"</font></td>\n";
        // print calendar table
        str_buffer += "</tr>\n";
        while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
                dt_current_day.getMonth() == dt_firstday.getMonth()) {
                // print row heder
                str_buffer += "<tr>\n";
                for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
                                if (dt_current_day.getDate() == dt_datetime.getDate() &&
                                        dt_current_day.getMonth() == dt_datetime.getMonth())
                                        // print current date
                                        str_buffer += "        <td bgcolor=\"#FFB6C1\" align=\"right\">";
                                else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
                                        // weekend days
                                        str_buffer += "        <td bgcolor=\"#DBEAF5\" align=\"right\">";
                                else
                                        // print working days of current month
                                        str_buffer += "        <td bgcolor=\"white\" align=\"right\">";

                                if (dt_current_day.getMonth() == dt_datetime.getMonth())
                                        // print days of current month
                                        str_buffer += "<a href=\"javascript:window.opener."+str_target+
                                        ".value='"+dt2dtstr4(dt_current_day)+"'; window.close();\">"+
                                        "<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
                                else
                                        // print days of other months
                                        str_buffer += "<a href=\"javascript:window.opener."+str_target+
                                        ".value='"+dt2dtstr4(dt_current_day)+"'; window.close();\">"+
                                        "<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
                                str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
                                dt_current_day.setDate(dt_current_day.getDate()+1);
                }
                // print row footer
                str_buffer += "</tr>\n";
        }
        // print calendar footer
        str_buffer +=
                "</table>\n" +
                "</tr>\n</td>\n</table>\n" +
                "</body>\n" +
                "</html>\n";

        var vWinCal = window.open("", "Calendar",
                "width=200,height=250,status=no,resizable=yes,top=200,left=200");
        vWinCal.opener = self;
        vWinCal.focus();
        var calc_doc = vWinCal.document;
        calc_doc.write (str_buffer);
        calc_doc.close();
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt4 (str_datetime) {
        var re_date = /^(\d+)\/(\d+)\/(\d+)$/;
        if (!re_date.exec(str_datetime))
                return alert("Invalid Datetime format: "+ str_datetime);
        return (new Date (RegExp.$3, RegExp.$1-1, RegExp.$2));
}
function dt2dtstr4 (dt_datetime) {
        return (new String (
                        (dt_datetime.getMonth()+1)+"/"+dt_datetime.getDate()+"/"+dt_datetime.getFullYear()));
}
