Customizing JavaScript confirmation dialog boxes?
38008
How to edit a JavaScript alert box title?
131454
CSS :selected pseudo class similar to :checked, but for  elements
40302
Malicious "confirm navigation" dialogs?
119854
How to pop up an alert box when the browser's refresh button is clicked?
20569
Inline editing or modal popup
128931
Customize standard error message on the visualforce page
34640
Should I use Yes/No or Ok/Cancel on my message box?
57579
Change group box text color?
110780
Show alert popup on standard page layout on click of standard button "Save"
104714
How do I hide javascript code in a webpage?
39072
Changing the default title of confirm() in JavaScript?
99817
How do I programmatically set the value of a select box element using JavaScript?
9623
End of javascript sidebar workarounds? (Salesforce Classic / Aloha)
97808
How to implement "confirmation" dialog in Jquery UI dialog?
152873
JavaScript Form Submit - Confirm or Cancel Submission Dialog Box
36794
Customize Notification Alerts/Badges
135554
How can I disable javascript popups/alerts in Chrome?