How to add jquery datepicker to dynamically created input which lives in an ajax called page

Question

Forgive me if this has been answered, but I have searched this site using creative versions of different search terms and came up blank.

I have a php webpage (index.php), that uses ajax to load another php page (dataQuery.php) which has an html form on it. I have created a small script ( addInput() ) that allows the user to dynamically add as many input fields to this form as they like. One of these fields is a date field that I would like to have a datepicker attached to. In the past I have included any javascript to the ajax callback, however in this case I could not get it to work.

Here is my function Query() :

function Query()    
{
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    { 
    document.getElementById("container").innerHTML=xmlhttp.responseText;

    // Tried this suggestion found on stackoverflow:
    $('body').on('focus',".newlabour_date", function(){
    $(this).datepicker();});

    // And this one:
    $( "#newlabour_date" ).datepicker();
    }
  }
xmlhttp.open("GET","/process/dataQuery.php",true);
xmlhttp.send();
}

Here is my function addInput()

function addInput(table,counter,rowcount)
{
var counter = document.getElementById(counter);
var number = counter.value;
counter.value = ++counter.value;

var rowcount = (rowcount*1+1); // muliply the rowcount by 1 to ensure it doesn't get treated as a concatenation.

var table = document.getElementById(table);
var row = table.insertRow(rowcount);
row.align = "center";

var cell1 = row.insertCell(0);
cell1.className = "bBottom";
cell1.width = "20%";
cell1.height = "21";

cell1.innerHTML = "<input type=\"text\" style=\"position:relative; top:2px;\"
class=\"noborder\" name=\"newlabour_date["+number+"]\" id=\"newlabour_date["+number+"]\" size=\"15\" maxlength=\"\" placeholder=\"\" value=\"\">";
}

I don't know if this is possible, but I have a feeling it is. Appreciate any help.

Answer 1

There are some errors with your code, you have missed the newlabour_date for the generated input field and table.insertRow(rowcount); giving out of rage error.

A working example without Ajax: http://jsfiddle.net/qxarbpcc/

Here is the updated version of your addInput function:

function addInput(table,counter,rowcount)
{
    var counter = document.getElementById(counter);
    var number = counter.value;
    counter.value = ++counter.value;

    var rowcount = parseInt(rowcount)+1; // muliply the rowcount by 1 to ensure it doesn't get treated as a concatenation.

    var table = document.getElementById(table);
    var row = table.insertRow(0);
    row.align = "center";

    var cell1 = row.insertCell(0);
    cell1.className = "bBottom";
    cell1.width = "20%";
    cell1.height = "21";

    cell1.innerHTML = "<input type=\"text\" style=\"position:relative; top:2px;\" class=\"noborder newlabour_date\" name=\"newlabour_date["+number+"]\" id=\"newlabour_date["+number+"]\" size=\"15\" maxlength=\"\" placeholder=\"\" value=\"\">";
}

Then change your Ajax callback to this:

if (xmlhttp.readyState==4 && xmlhttp.status==200)
{ 
    document.getElementById("container").innerHTML=xmlhttp.responseText;

    $('body').on('focus',".newlabour_date", function(){
    $(this).datepicker();});
}

Don't forget to add jquery and jqueryui in head section.