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Datepicker set period after specified time

darren-w- asked
Last Modified: 2012-08-20

Setting up a direct debit page, the user specifies the date for the first payment and then can pick on the end date for payments.

They need to pick on a defined period (ie monthly, weekly, 6 monthly...) and the end date cannot be before this.

so if a user picks a start date that is in 14 days+ time and the period is set to monthly the earliest end date cannot be before a month after the start date.

So the present code in snippets:

        dateFormat: 'dd/mm/yy',
        changeMonth: true,
        beforeShowDay: jQuery.datepicker.noWeekends,
               onSelect: function( selectedDate ) {
            $( "#Enter_date" ).datepicker( "option", "minDate", selectedDate );
        dateFormat: 'dd/mm/yy',
        changeMonth: true,
        beforeShowDay: jQuery.datepicker.noWeekends

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this is a function I'm using to work out the period as required by the datepicker:
function setDate(){
    var freq = jQuery('#frequency option:selected').attr('label');
    var twovalue;
    var retString;
    if(freq.indexOf(' ') >= 0){
        twovalue=  freq.split(' ');
    if (freq.indexOf(' ') >= 0){
        twovalue=  freq.split(' ');
        var freqNo = twovalue[0];
        var freqPeriod = twovalue[1].charAt(0).toLowerCase();
        retString = "+"+freqNo+freqPeriod
    }else if(freq.toLowerCase() == "fortnight"){
        retString = "+2w";
        retString = "+1"+ freq.charAt(0).toLowerCase();

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Though I think some native date manipulation may be required
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