How do I open a window from the outside?

How do you change JavaScript code of window.open to not open in a new window?

• I have a JavaScript file which on form submit, which opens results in a new window. It is using window.open to open in a new window. How do I submit in the same window?

• Answer:

  You don't have to change the behavior of window.open to target the same window, because window.open already supports this option. First you need to give your window a name, then you provide that name to window.open as the second parameter: window.name = Math.random().toString(36); window.open(url, window.name); Alternatively, you can just tell the form to target a named window when it gets submitted: var form = document.createElement("form"); form.action = "/path/on/server"; form.method = "GET"; form.target = window.name = Math.random().toString(36); // add some data fields to the form form.submit(); In both of these examples I've used Math.random().toString(36) as a way of generating random alphanumeric names.