Check Before Closing a Window in Javascript
<HTML> <HEAD> <TITLE>window.closed Property</TITLE> <SCRIPT LANGUAGE=”JavaScript”> // initialize global var for new window object // so it can be accessed by all functions on the page var newWind // set flag to help out with special handling for window closing var isIE3 = (navigator.appVersion.indexOf(“MSIE 3”) != -1) ? true : false // make the new window and put some stuff in it function newWindow() { newWind = window.open(“”,”subwindow”,”HEIGHT=200,WIDTH=200”) // take care of Navigator 2 if (newWind.opener == null) { newWind.opener = window } setTimeout(“finishNewWindow()”, 100) } function finishNewWindow() { var output = “” output += “<HTML><BODY><H1>A Sub-window</H1>” output += “<FORM><INPUT TYPE=’button’ VALUE=’Close Main Window’” output +=”onClick=’window.opener.close()’></FORM></BODY></HTML>” newWind.document.write(output) newWind.document.close() } // close subwindow, including ugly workaround for IE3 function closeWindow() { if (isIE3) { // if window is already open, nothing appears to happen // but if not, the subwindow flashes momentarily (yech!) newWind = window.open(“”,”subwindow”,”HEIGHT=200,WIDTH=200”) } if (newWind && !newWind.closed) { newWind.close() } } </SCRIPT> </HEAD> <BODY> <FORM> <INPUT TYPE=”button” VALUE=”Open Window” onClick=”newWindow()”><BR> <INPUT TYPE=”button” VALUE=”Close it if Still Open” onClick=”closeWindow()”> </FORM> </BODY> </HTML>
Filed Under: Javascript
