tyrant1969
Programmer
I am using a javascript and html in a "pop-up" window to perform some database queries and the like that need to occur server side as opposed to client side.
One of the things I do is to check the value of an input field on the opening page, if this is an empty (blank) value, I want the system to put up an error message and stop processing - everything.
The Javascript, the HTML, everything.
How do I achieve this?
One of the things I do is to check the value of an input field on the opening page, if this is an empty (blank) value, I want the system to put up an error message and stop processing - everything.
The Javascript, the HTML, everything.
How do I achieve this?