Hide/Unhide buttons added to a Detail lines object

I would set the button.value="" after the form initialize and then on after transaction. In the on after, I would then get the form value of a field in the line and if a value exists, set the button.value="Click me"

If you are using Lawson 10 you may need to do something like this:

for(var i = 0; i < 12; i++) {  // Change this to the number of lines you have.
  my_button = lawForm.getFormElement("push1",i); // Get a reference to the image button 
  my_button.style.visibility = 'hidden';  // Hide the button.
}
 
Then to show the button use my_button.style.visibility = 'visible';  // Show the button.

 

in the scripte, use the .style.visibility property to hide/show...

in FORM_Oninit(), add code to hide the button.

// change cursor to hand & make invisible the custom change button
var objChangeBtn = lawForm.getFormElement("imgchange");
if (objChangeBtn) {
objChangeBtn.style.cursor="hand";
objChangeBtn.style.visibility="hidden";
}

In FORM_OnAfterTransaction()

var objChangeBtn = lawForm.getFormElement("imgchange");
if (objChangeBtn) {
objChangeBtn.style.visibility="visible";
}

THANK You everyone for your help. We are using Lawson 10 so all of your replies were helpful .