Here's JavaScript based Regular Expression Tester.JavaScript (or Microsoft's variant JScript) will need to be enabled in your browser.Actually this test program is not proper for you to test the complex combination of regular expression supported by RegExp...
The javascript browser snifer makes an extensive use of regular expressions and the search() and match() functions.By this function, you can know following information:[1] browser type[2] browser version[3] os type[4] os version[5] flash installation infor...
The three most basic searches using regular expressions are searching for the strings start, the strings end, or for characters it contains. We can do these using the following symbols:^ indicates the string starts with the specified characters, so "^strcp...
Scrolls HTML elements within a DIV. A version of the HTML Scroller modified to display a DIV on both the left and right side of the window for both IE and Netscape. 
Allows user to confirm whether to proceed to the link that was clicked.
You can select and deselect all checkboxes by clicking two hyperlinks(Select All and Deselect All).This type of functionality will beneeded some times in HTML table.
Simple, but pretty good reference for studying purpose.