How to solve JavaScript page refresh and pop-up problems _ javascript skills

Solve the JavaScript page refresh and pop-up window Problems 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 is displayed.
B) <form method = "get"...> not displayed
Ii. 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 ();
Iii. javascript pop-up code
The following are two examples of the screen center window

The Code is as follows:

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 is window
4. In the mode window, a new window is displayed.
Add <base target = "_ self"> between 5. How to close the page without prompting

The Code is as follows:

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 ()
}
}