<script language="javascript">
    //Date formattor plugin
    
    //replace YYYY-MM-DD(Mysql default date format) in user specified custom date format
    //usage example $('JQUERY_SELECTOR').dateFormator('M-ddd-yyyy');
    //dependency jquery.js  download from jquery.com
    //dependency date.js  download from http://code.google.com/p/datejs/downloads/detail?name=date.js&can=2&q=
    //for allowed date format specifier see below
    /*
    Format  Description                                                                  Example
    ------  ---------------------------------------------------------------------------  -----------------------
    s      The seconds of the minute between 0-59.                                      "0" to "59"
    ss     The seconds of the minute with leading zero if required.                     "00" to "59"

    m      The minute of the hour between 0-59.                                         "0"  or "59"
    mm     The minute of the hour with leading zero if required.                        "00" or "59"

    h      The hour of the day between 1-12.                                            "1"  to "12"
    hh     The hour of the day with leading zero if required.                           "01" to "12"

    H      The hour of the day between 0-23.                                            "0"  to "23"
    HH     The hour of the day with leading zero if required.                           "00" to "23"

    d      The day of the month between 1 and 31.                                       "1"  to "31"
    dd     The day of the month with leading zero if required.                          "01" to "31"
    ddd    Abbreviated day name. Date.CultureInfo.abbreviatedDayNames.                  "Mon" to "Sun"
    dddd   The full day name. Date.CultureInfo.dayNames.                                "Monday" to "Sunday"

    M      The month of the year between 1-12.                                          "1" to "12"
    MM     The month of the year with leading zero if required.                         "01" to "12"
    MMM    Abbreviated month name. Date.CultureInfo.abbreviatedMonthNames.              "Jan" to "Dec"
    MMMM   The full month name. Date.CultureInfo.monthNames.                            "January" to "December"

    yy     The year as a two-digit number.                                              "99" or "08"
    yyyy   The full four digit year.                                                    "1999" or "2008"

    t      Displays the first character of the A.M./P.M. designator.                    "A" or "P"
    $C.amDesignator or Date.CultureInfo.pmDesignator
    tt     Displays the A.M./P.M. designator.                                           "AM" or "PM"
    $C.amDesignator or Date.CultureInfo.pmDesignator

    S      The ordinal suffix ("st, "nd", "rd" or "th") of the current day.            "st, "nd", "rd" or "th"
    */
</script>
<script type="text/javascript" src="date.js"></script>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
    (function($){

        //Attach this new method to jQuery
        $.fn.extend({

            //This is plugin
            dateFormator: function(dateformat) {

                //Iterate over the current set of matched elements
                return this.each(function() {
                    var result='';
                    var newresult='';
                    var dt='';
                    //pattern to be match here
                    var patt=/(\d{4}-\d{2}-\d{2})\b/gm;  //replace match in yyyy-MM-dd format             
                    var str=$(this).html();
                    //newresult=str;
                    result=str.match(patt);
                    if(result!=null){
                        if(result.length==1){
                            dt=Date.parseExact(result,"yyyy-MM-dd");                
                            str=str.replace(eval('/'+result+'/gi'),dt.toString(dateformat));
                        }else{
                            for(i=0;i<result.length;i++){
                                dt=Date.parseExact(result[i],"yyyy-MM-dd");
                                // alert(result[i]+'----'+dt.print(dateformat));

                                str= str.replace(eval('/'+result[i]+'/gi'),dt.toString(dateformat));
                            }
                        }
                    }
                    //alert(str);
                    $(this).html(str);
                });
            }
        });

        //pass jQuery to the function,

    })(jQuery);
</script>

I always find issue when we want to show date in different format i.e other than mysql default format. (YYYY-MM-DD) using jquery plugin this date format can be converted into any specified  date format i.e indian,US,Europe from any html element

Jquery Date Formator Plugin

date, plugin

JavaScript