function formHandler(){
var URL = document.form.site.options[document.form.site.selectedIndex].value;
window.location.href = URL;
}

document.write('<form name="form">');
document.write('<select name="site" size=1>');
document.write('<option value="">Go to....');
document.write('<option value="psp_oval.shtml">Adding Text & Images to Buttons ~ 7');
document.write('<option value="optimizing_graphics.shtml">Optimizing Graphics ~ 7');
document.write('<option value="3d_buttons.shtml">3D Buttons ~ 7');
document.write('<option value="leaf_text.shtml">Leaf Text ~ 7');
document.write('<option value="pspgifs.htm">Transparent Gifs ~ 7');
document.write('<option value="photo_manipulation.shtml">Photo Manipulation ~ 7');
document.write('</select>');
document.write('<input type=button value="Go!" onClick="javascript:formHandler()">');
document.write('</form>');