Fix for bug 75581 - 'When attaching a webpage in mail, we prefill the field bar with 0, instead of null' r=sspitzer@netscape.com r=varada@netscape.com sr=sspitzer@netscape.com

mailnews/compose/resources/content/MsgComposeCommands.js

@@ -1516,7 +1516,7 @@ function AttachPage()
 {
     if (promptService)
     {
-        var result = {value:0};
+        var result = {value:""};
         if (promptService.prompt(
         	window,
         	gComposeMsgsBundle.getString("attachPageDlogTitle"),