An implementation of multiple dependent drop-down menus (three dependent listboxes)

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Select "Computers and Internet" and then "Software" to view the list of related items. Then click on an item to see its details.

Search Items Category Select Value Automotive Computers and Internet Education and Instruction Entertainment and Arts SubCategory Select Value Item Select Value YesSoftware IBM Oracle Microsoft Sun Microsystems

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ASP/VBScript, ASP.NET (C# and VB), PHP, Java Servlets, JSP, ColdFusion, Perl.