If your are using Netscape 2 or later then you can enable JavaScript.
Version 2 or 3: Choose Options|Network Preferences, choose the Languages tab, click Enable Javascript and then click OK.
Version 4: Choose Edit|Preferences|Advanced, click Enable JavaScript and then click OK.
With Internet Explorer 5: Go to Tools Menu|Internet Options, Security Tab and click on the Custom Level. Then select disable active scripting under the scripting section.