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  1. #1
    Junior Member
    Join Date
    Apr 2012
    Member #

    I have a hopefully small problem. I have a table that I am going to use to enter employee's time into. A dropdown box at the top of the page selects a group of users, which then populates the form. That part works great. For the form itself, I am using arrays to store the information, as in:
    echo '<td><input type="text" name="potential[]" size="2"/></td>';
    Now, what I would love, is to have additional columns that do math operations on that row, e.g. a column of applied ratio that divides the hours billed by potential hours.

    What I have tried so far is a simple function as in:
    function appliedRatio() {
    var tot = document.time.potential;
    var act = document.time.billable;
    var ar = 100*(parseInt(act.value) / parseInt(tot.value));
    document.getElementById("ar").value = ar;
    However, this pulls data from a specific form element. I'd like to loop over all the form elements, but I'm not quite sure how to go about this. Can I loop over an input array like this? Ideally, I will have a
    on each form element so everything automatically calculates, but I'm not sure how to get the javascript to loop over all rows of the table and set the values accordingly.



  3. #2
    Member Eric Mintz's Avatar
    Join Date
    Mar 2012
    Atlanta, GA
    Member #
    7 times
    Something like this?

    var elementArray = document.getElementById('myForm').elements;
    for(var i = 0; i < elementArray.length; i++) {
    // do stuff with the form elements

    And this?

    var table = document.getElementById('myTable');
    for (var i = 0, row; row = table.rows; i++) {
    // do stuff with rows
    for (var j = 0, col; col = row.cells[j]; j++) {
    // do stuff with cells

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