Client Side Scripts

Only a few of these scripts provide "flashy" effects. 

One of JavaScript's main strengths is the ability to validate forms on the client side.  This prevents web pages from making a trip to the server in an HTTP call, have the server do the validations, and then send an error page back to a waiting user.

We save the user time and the server load by having JavaScript present an error message the instant a user clicks "Submit".

My client-side script collection fall into several categories:

Look & Feel        Dropdown Navigation Simple way to display large numbers of hyperlinks on a single page. Auto-Form Focus Automatically set focus on the first form item when a page loads. Submit on [ENTER] Automatically submit the form when the [ENTER] Key is pressed. Hide or Show Content Hide or display content, images, tables or forms on a webpage. Image Swap A simple 1 line function that swaps two images.

String Manipulation        Trim Functions 4 functions that trim excess characters from leading edges of a string.  Saves database space and improves search results.  Knock out those extra spaces before submitting data to any database. Reverse String Function Pass this function a string and it returns the reversed.

Data Validation        Date Range Validates two date fields; makes sure the "start" date is before the "end" date. String Length Validates the length of a string before submitting it to the database. isEmpty VB-ish Function A Client-Side JavaScript replacement for the Server-Side "isEmpty()" function. Email Address A great email address validation script.  Very detailed. IsNumeric() for JS Validate your form fields for numeric values; refuse letters and characters.  Returns "true" for numbers, else "false". Within Numeric Range Validate if a passed number falls between two other passed number parameters. Single Character isDigit() Validates a single character as a digit.

Other        Cookie Functions Functions to automate cookie setting and data retrieval.