Javascript window. open the new window and you cannot open it again. How can this problem be solved?

In the system, javascript open window is used in some places. For example, you can open a window in fixed mode to prevent other operations.

Parameters:
Copy codeThe Code is as follows:
Parameter | value range | description
AlwaysLowered | yes/no | specifies that the window is hidden behind all windows
AlwaysRaised | yes/no | specify that the window is suspended above all windows
Depended | yes/no | whether to close the parent window at the same time
Directories | yes/no | whether the directory bar of Nav2 and 3 is visible
Height | pixel value | window height
Hotkeys | yes/no | set the Security Exit hotkey in the window without menu bar
InnerHeight | pixel value | pixel height of the document in the window
InnerWidth | pixel value | pixel width of the document in the window
Location | yes/no | whether the location bar is visible
Menubar | yes/no | whether the menu bar is visible
OuterHeight | pixel value | set the pixel height of the window (including the decorative border)
OuterWidth | pixel value | set the pixel width of the window (including the decorative border)
Resizable | yes/no | whether the window size can be adjusted
ScreenX | pixel value | pixel length between the window and the left boundary of the screen
ScreenY | pixel value | pixel length between the window and the upper boundary of the screen
Scrollbars | yes/no | whether the window has a scroll bar
Titlebar | yes/no | whether the title bar of the window is visible
Toolbar | yes/no | whether the toolbar of the window is visible
Width | pixel value | pixel Width of the window
Z-look | yes/no | whether the window floated above other windows after being activated
Instance:
Copy codeThe Code is as follows: window. open ("page.html", "newwindow", "height = 100, width = 100, top = 0, left = 0, toolbar = no, menubar = no, scrollbars = no, resizable = no, location = no, status = no ")
Calculate the height and width based on the resolution and enable it:
Copy codeThe Code is as follows: var ht = screen. height-98;
Var widhh = screen. width-20;
Window. opener = null;
Window. open ("", "_ self ");
Window. open ("Main. aspx", "newwindow" + JsGuid (),
"Height =" + ht + ", width =" + widhh + ",
Depended = yes, top = 0, left = 0, toolbar = no, menubar = no,
Scrollbars = yes, resizable = no, location = no, status = yes ");

Window. close ();
And close the original window.

Problem:

After window. open, if the system exits, an error occurs when window. open is used again to open a new page.

Google hasn't been found for a long time. This problem may not happen frequently. It must be a configuration problem.

The second parameter of window. open is the name of the new window. This name cannot be repeated.

If it already exists, refresh it in this window.

So I added a random GUID function for js.
Copy codeThe Code is as follows: function s4 (){
Return Math. floor (1 + Math. random () * 0x10000)
. ToString (16)
. Substring (1 );
};
Function JsGuid (){
Return s4 () + s4 () + '-' + s4 () + '-' + s4 () + '-' +
S4 () + '-' + s4 () + s4 () + s4 ();
}
When opening a window, use: window. open ("Main. aspx", "newwindow" + JsGuid ());
OK. Solve the problem.