function ConvertStringToDate(stringDate)
{
    //e.g. 05-SEP-2007
    //     012345678910 
    
    var month;
    var monthName = stringDate.substring(3,6);
    switch(monthName.toUpperCase())
    {
        case 'JAN': month = 1; break;
        case 'FEB': month = 2; break;
        case 'MAR': month = 3; break;
        case 'APR': month = 4; break;
        case 'MAY': month = 5; break;
        case 'JUN': month = 6; break;
        case 'JUL': month = 7; break;
        case 'AUG': month = 8; break;
        case 'SEP': month = 9; break;
        case 'OCT': month = 10; break;
        case 'NOV': month = 11; break;
        case 'DEC': month = 12; break;
    }
    var year = stringDate.substring(7);
    var day = stringDate.substring(0,2);
   
    return new Date(year,month-1,day);
}