Validating a checkbox in javascript

Use following multiple check box selection example to study the in Java Script. First you have to select at least 3 mobile phone manufactures from first check box group.Then you have to select at least 4 features of the mobile phone.* In this example there are tow error message types used to indicate the error. Now you can ask questions directly to me on my new site ASPForums. From that you should be able to figure out what the problem is with your IF condition.

allows the user to select more than one item from the group.Hello, Apologies if this is a duplicate thread, though I did search existing topics but couldn't find a similar problem to mine.I have some checkboxes in a form that I'd like to validate (check to ensure that at least one has been ticked): I need to pass along multiple checkbox responses to my PHP script and therefore need to keep checkboxes named name="response[]".After that you have to select the camera resolution from the third multiple select check box.If you forget to make a selection from a check box group, you are prompted to make a selection from appropriate check boxes from that group.

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The tutorial describes Javascript validation of textboxes, comboboxes, radio buttons and checkboxes.

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