Use the Option (combox) onChange event to navigate : select option « Form « JavaScript Tutorial

<HTML>
<HEAD>
</HEAD>

<BODY>

<FORM name="f2">
<SELECT name="s2" onChange="window.location=document.f2.s2.options[document.f2.s2.selectedIndex].value">
<OPTION SELECTED value="http://www.java2s.com">E
<OPTION value="http://www.java2s.com">D
<OPTION value="http://www.java2s.com">C
<OPTION value="http://www.java2s.com">B
<OPTION value="http://www.java2s.com">A
</SELECT>
</FORM>

</BODY>

</HTML>

10.13.select option
	10.13.1.	Find the selected option
	10.13.2.	Click button to navigate a selection in form option (combox)
	10.13.3.	Use the Option (combox) onChange event to navigate
	10.13.4.	Using the options[index].text Property
	10.13.5.	Using the options[index].value Property
	10.13.6.	Using the selectedIndex Property
	10.13.7.	Modifying optgroup Element Labels