var timestamp = new Date().getTime();

Simple get the date and time from the above code and append that after a ‘?’ + timestamp after your image name. This will not affect the image that gets loaded and the browser will automatically reload the image.

*Update*
It was brought to my attention that this method may not be good SEO as you are effectively adding garbage to the image name and lengthening the name significantly as well. Alternative solutions seem to include using nocache option in the meta tags or possibly using javascript for a refresh

Here is the line of code that ultlimately worked:

document.getElementById('ajax_spinner').parentNode.style.display = 'block';

The only reasoning that I was able to find from the original poster was that it somehow established a connection with the parent node. In this case, I put a div tag around the image and set the style to display:none, so this line of code actually modifies the div which encapsulates the image. The image style does not control the visibility or display of itself.

*Update*
Additional I have found that putting this code in the onclick of a submit button does not work. I had to replace the submit button with a standard button and submit the form via javascript.
jQuery(“#my_form_name”).submit();

In my case I used my Rails controller to return JSON data first on the backend:

result_lat_lon = processNgaNums(params[:map])

respond_to do |format|
    format.json { render :json => result_lat_lon.to_json}
end

Then on the client side I created an ajax request:

new Ajax.Request(path, {
         asynchronous:true,
         evalScripts:true,
         method:'get',
         onComplete: function(transport){
                       var json = transport.responseText.evalJSON();
                       jQuery.each(json, function(i, val){
                          locations.push([i, val[0], val[1]]);
                       });
                       setMarkers(map, locations);
                     }
        });

The main block of code to take note of here is to declare the transport variable which the onComplete function will receive when it is called.  Then you can do an evalJSON on that text and treat it as an array.   Also in the loop to process the JSON each entry contains a key and a value which corresponds to the i and val variables.

>> arr << [3,2,1]
=> [[3, 2, 1]]

>> arr<< [1,2,3]
=> [[3, 2, 1], [1, 2, 3]]

>> arr << [2,1,3]
=> [[3, 2, 1], [1, 2, 3], [2, 1, 3]]

>> arr.sort{ |a,b| a[0] <=> b[0]}
=> [[1, 2, 3], [2, 1, 3], [3, 2, 1]]

Open Safari and go to Preferences

Under the Advanced tab, check “Show Develop menu in menu bar”.

Safari’s menu go to Develop->User Agent->Mobile Safari (there should be multiple versions) pick the most appropriate

This command may be done via ssh access to ESX to change the VM to use thin provisioning.

vmkfstools -i Ubuntu-s001.vmdk new.vmdk -d thin -a lsilogic
-increase the size from the vsphere client of the hardrive in question
-load gparted iso and set it to boot on startup from vsphere client
-Make sure the cd-rom is “conenct at power on”
-I deleted the linux swap partition (turned it off first) by right clicking on the swap partition
-then I was able to resize my primary partition
-recreated the swap partition at the end [primary + additional partition][swap]

Doing a “df -h” shows that the disk space was automatically recognized by Ubuntu after running gparted.

In a nutshell, just in clude JQuery first and then include the other libraries(s) that may use the $( function. Make sure you call JQuery stuff with JQuery(xxx) instead of $( from now on.  You include JQuery in rails usually in your main layout file by typing:

<%= javascript_include_tag ‘jquery’ %>

Make sure the jquery download files are in your /public/javascript directory of your project.

The JQuery site suggested adding the noconflict at the end of the jquery.js file, but instead I did it this way in the layout file.

<script>jQuery.noConflict(); </script>

HUMANIZED_COLUMNS = {
:Column_name => “New Name”,
:OtherColumn_name => “New Name 2″
}
def self.human_attribute_name(attribute)
HUMANIZED_COLUMNS[attribute.to_sym] || super
end

1. Failed: File is larger than the maximum size supported by datastore

Solution: Split up the files to different datastores, or use Thin instead of Flat so it only takes the space used and not the full amount of allocated space for a partition.

2. Failed: MethodFault.summary

Solution: Changed number of processors from 8 to 4, because my VM server only has one quad core processor.

3. Failed: Unable to obtain the IP address of the helper virtual machine.

Solution: Assign a DHCP or static IP to the “Helper VM Network” at the bottom of the configuration.  Edit this value.

4.  Failed: An error occurred during the conversion.   Error: Failed to clone the volume mounted on ‘/boot’

Solution: Add the DNS suffix to the Helper VM Network.  Also, I needed to add the IP address to the hosts.allow in my Redhat Linux of the Helper VM, that I assigned in #3 from above.

UPDATE

5. Error: Failed to clone the volume mounted on ‘/’

Solution: again this was a problem with the fact that the machine to duplicate had the security settings setup to block the helper VM.  I had to add the entry into the hosts.allow.  But I can see other potential problems with the firewall (i.e. iptables) where certain ports must be open.  Here is a link to vmware showing which ports to open.

The solution I found was to create a virtual VMWare ESXi OS install on my VMWare Workstation.  This was not very straight forward as ESXi 4.0 is only for 64-bit systems.  I found that ESXi 3.5 was 32-bit and decided to give it a try.  For some reason the ESXi install would not proceed correctly choosing to throw PANIC errors.  Later I realized that it was due to the fact that I did not allocate enough RAM to this machine.  The default value was 256MB and the solution was to up that value to over 1GB of RAM.  Then, I would get stuck during the installation in the first 10% or so and would just not move on.  I found the solution through a youtube video which showed that I need to select an Intel VT option for the processor settings.  This allowed me to continue with the installation.

Note:  On a Dell Quad-core server I had to enable the hardware Intel VT instructions.  Otherwise the installation of ESX may hang.

More to come…

ESXi booted up with some lvm error, but for some reason, I could not get an IP address.  Edited my myvmName.vmx file with note pad and added the blow lines.
Check out this video here

monitor_control.restrict_backdoor = “TRUE”
monitor_control.vt32 = “TRUE”
SMBIOS.reflectHost = “TRUE”
ethernet0.VirtualDev = “e1000″

After that I was able to get a DHCP address!  In my production environment we use static ip addresses, so for now I had to switch it to use NAT.

Now I can use Converter to capture a base virtual image of my remote physical machine.  Make sure to give root remote access rights and use the IP address of your server as the source.  For the destination, in a p2V situation using linux we can only use ESXi and so we need to capture to a VMWare Infrastructure virtual machine.  The IP address is that of your virtual ESX installation and don’t forget to set a root password, otherwise it will not work.

After the image was transferred, I used converter again to bring it over from the VMWare Infrastructure virtual machine to the VMware Workstation or other VMware virtual machine.  This allows me to open the vm from workstation instead of from ESX.  At some point I may deploy to an ESX installation but for now I am content to access my linux box from workstation.