Question

I am using this javascript that resizes my the pictures on my site. But it doesn’t seem to load the javascript when I am loading the page.
This is my javascript:

$(document).ready(function () {
$("img.picture").each(function () {
    var maxWidth = 100; // Max width for the image
    var maxHeight = 100;    // Max height for the image
    var ratio = 0;  // Used for aspect ratio
    var width = $(this).width();    // Current image width
    var height = $(this).height();  // Current image height

    // Check if the current width is larger than the max
    if (width > maxWidth) {
        ratio = maxWidth / width;   // get ratio for scaling image
        $(this).css("width", maxWidth); // Set new width
        $(this).css("height", height * ratio);  // Scale height based on ratio
        height = height * ratio;    // Reset height to match scaled image
        width = width * ratio;    // Reset width to match scaled image
    }

    // Check if current height is larger than max
    if (height > maxHeight) {
        ratio = maxHeight / height; // get ratio for scaling image
        $(this).css("height", maxHeight);   // Set new height
        $(this).css("width", width * ratio);    // Scale width based on ratio
        width = width * ratio;    // Reset width to match scaled image
    }
    $(this).show();
  });
 });

And this is my header:

<link href="Styles/home/photo.css" rel="stylesheet" type="text/css" />
    <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>
    <script src="ResizePicture.js" type="text/javascript"></script>
    <script src="ChangePicture.js" type="text/javascript"></script>

It’s called ResizePicture.js
Anyone out there got an idea why it doesn’t load from the start??

Answer 1

In some browsers image width and height can be fetched after it’s been loaded. There are two ways to fix this issue:-

define image width and height attrs in html

or

change your code to:-

$(document).ready(function () {
$("img.picture").each(function () {
    $(this)
     .show()
     .css('visibility', 'hidden');
    $(this).load(function(){
    var maxWidth = 100; // Max width for the image
    var maxHeight = 100;    // Max height for the image
    var ratio = 0;  // Used for aspect ratio
    var width = $(this).width();    // Current image width
    var height = $(this).height();  // Current image height

    // Check if the current width is larger than the max
    if (width > maxWidth) {
        ratio = maxWidth / width;   // get ratio for scaling image
        $(this).css("width", maxWidth); // Set new width
        $(this).css("height", height * ratio);  // Scale height based on ratio
        height = height * ratio;    // Reset height to match scaled image
        width = width * ratio;    // Reset width to match scaled image
    }

    // Check if current height is larger than max
    if (height > maxHeight) {
        ratio = maxHeight / height; // get ratio for scaling image
        $(this).css("height", maxHeight);   // Set new height
        $(this).css("width", width * ratio);    // Scale width based on ratio
        width = width * ratio;    // Reset width to match scaled image
    }
    $(this).css('visibility', 'visible');
    })
  });
 });

I would rather do resizing in SERVER SIDE script not with js.