RE: [PHP] [php] dependable combo boxes with mysql database

[snip] In the above code there are three combo box namely D1, D2 and D3. D1 will be populated on pageload. Now D2 should be populated on event like 'onblur' to D1 and similarly D3 should be populated on event like 'onblur' to D2. Pl. give me the exact code or proper guideline how should I accomplish this on the same page. [/snip] Unfortunately this is a PHP list and your question concerns JavaScript. I found this while googling "onblur executes JavaScript whenever a user moves with the mouse the focus away from an element within a form. In other words, whenever a person first clicks an element, and then clicks anywhere outside of it." Here is a tutorial http://www.javascriptkit.com/javatutors/form6.shtml