// JavaScript Document

<!-- Begin Dropdown Menu Script -->
function openDir( form ) { 

	var newIndex = form.fieldname.selectedIndex; 

	if ( newIndex == 0 ) { 

		alert( "Please select an option!" ); 

	} else { 

		cururl = form.fieldname.options[ newIndex ].value; 

		window.location.assign( cururl ); 

	} 

} 
<!-- End Dropdown Menu Script -->