Using Status Messages
<html> <head> <title>JavaScript Unleashed</title> <script language= "JavaScript"> <!-- function statusMsg(msgType) { var message = ""; if(msgType == "string") { message = "string"; } if(msgType == "integer") { message = "integer"; } else if(msgType == "dollar") { message = "dollar and float"; } else if(msgType == "credit") { message = "credit number"; } window.defaultStatus = message; window.status = message; } //--> </script> </head> <body onFocus="statusMsg('')"> <form name="form1" action="#" method="post"> <br>First Name <input type="text" size=20 maxlength=20 name="Integer" onFocus="statusMsg('string')"><br> Last Name <input type="text" size=20 maxlength=20 name="Integer" onFocus="statusMsg('string')"><br> Age <input type="text" size=5 maxlength=5 name="Integer" onFocus="statusMsg('integer')"><br> Amount <input type="text" size=6 maxlength=6 name="Dollar" onFocus="statusMsg('dollar')"><br> Card # <input type="text" size=16 maxlength=16 name="Credit" onFocus="statusMsg('credit')"><br> <br> <input type="submit" value="Submit"> </form> </body> </html>