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Using a Select List for Navigation

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An HTML Select list is a form control used to create a drop-down list of items from which the user can select. Each item in a select list is defined by an option element. When the user selects one of the items in a select list, an onchange event is triggered. The selectedIndex property of the list will then contain the index of the item that the user selected. Select list option indexes start with 0 for the first item.

You can use a select list as a navigation element by setting each option element's value attribute to the URL of a web site or web page. Then use the select list's onchange event to execute a function that sets the browsers location object to that URL. Example code for a navigation drop-down list is shown below.

<script type="text/javaScript">

function gotoPage()
{
  var list = document.myForm.mySelect;
  location.href = list.options[list.selectedIndex].value;
}

</script>

<form name="myForm">
<select name="mySelect" onchange="gotoPage()">
<option value="http://www.ftc.gov">Federal Trade Commission</option>
<option value="http://en.wikipedia.org">Wikipedia</option>
<option value="http://www.w3.org">World Wide Web Consortium</option>
</select>
</form>

Note that the example code above causes the document in the browser window to be replaced, while the example select list navigation element at the top of the article causes the document to be opened in a new window. I did this so you would not need to naviage back to this page to return to the article. If this is what you want to do also, the code for that is shown below.

<script type="text/javaScript">
function gotoPage()
{
  var list = document.myForm.mySelect;
  var specs = "fullscreen=yes,location=yes,menubar=yes,resizable=yes,scrollbars=yes,status=yes,titlebar=yes,toolbar=yes";
  var win = window.open(list.options[list.selectedIndex].value,"",specs,true);
}

More Java Script Code:
• JavaScript to Copy and Paste Text to the Clipboard
• Introduction to HTML5 Canvas
• Debugging JavaScript : Coercions
• How to Shuffle the Deck With Java Script
• Create a Mouse Click Sound Effect
• Java Script Code to Re-arrange Items in a Select List
• Easy JavaScript Web Storage Code
• Prevent Automated Form Submissions With Java Script
• Java Script Message Boxes
• How to Place Image on HTML5 Canvas

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