Dialog Box Demo
<HTML> <HEAD> <TITLE>Dialog box demo</TITLE> </HEAD> <BODY> <FORM> <INPUT TYPE="BUTTON" VALUE="Alert" ONCLICK="alert('An alert dialog box.')"> <INPUT TYPE="BUTTON" VALUE="Confirm" ONCLICK="confirm('A confirm dialog box.')"> <INPUT TYPE="BUTTON" VALUE="Prompt" ONCLICK="prompt('A prompt dialog box.','Type something!')"> </FORM> </BODY> </HTML>