Javascript pop-up window Summary

1. No prompt to refresh the webpage
Have you found that when refreshing some webpages, a prompt window will pop up and click "OK" to refresh the page.
Some pages do not prompt. If the prompt window is not displayed, the page is refreshed directly.
If the page does not have a form,
The prompt window is not displayed.
If the page has a form,
A) <form method = "post"...>
A prompt window will pop up.
B) <form method = "get"...>
No

2. How to refresh the page with javascript

Window. location. reload ();

Use window. open () to refresh the parent window.
Window. opener. location. reload ()
Window. showDialog
Window. dialogArguments. location. reload ();

3. javascript pop-up window code 
The following are two examples of the screen center window
Window. open () method
Function ShowDialog (url ){
Var iWidth = 300; // window width
Var iHeight = 200; // window height
Var iTop = (window. screen. height-iHeight)/2;
Var iLeft = (window. screen. width-iWidth)/2;
Window. open (url, "Detail", "Scrollbars = no, Toolbar = no, Location = no, Direction = no, Resizeable = no,
Width = "+ iWidth +", Height = "+ iHeight +", top = "+ iTop +", left = "+ iLeft );
}

Window. showModalDialog Mode
Function ShowDialog (url ){
Var iWidth = 300; // window width
Var iHeight = 200; // window height
Var iTop = (window. screen. height-iHeight)/2;
Var iLeft = (window. screen. width-iWidth)/2;
Window. showModalDialog (url,Window, "DialogHeight:" + iHeight + "px; dialogWidth:" + iWidth + "px;
DialogTop: "+ iTop +"; dialogLeft: "+ iLeft +"; resizable: no; status: no; scroll: no ");
}

Note that the second parameter here,Window

4. The mode window data is not refreshed (cached)

Add the following statement to the jsp page: 

<%
Response. setHeader ("Pragma", "No-Cache ");
Response. setHeader ("Cache-Control", "No-Cache ");
Response. setDateHeader ("Expires", 0 );
%>

5. In the mode window, a new window is displayed.

Add <base target = "_ self"> between

6. No way to close the page
Function CloseWin (){
Var ua = navigator. userAgent; var ie = navigator. appName = "Microsoft Internet Explorer "? True: false;
If (ie ){
Var IEversion = parseFloat (ua. substring (ua. indexOf ("MSIE") + 5, ua. indexOf (";", ua. indexOf ("MSIE "))));
If (IEversion <5.5 ){
Var str = '';
Document. body. insertAdjacentHTML ("beforeEnd", str );
Document. all. noTipClose. Click ();
} Else {
Window. opener = null; window. close ();
}
} Else {
Window. close ()
}
}