function openWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}

if (document.images) {

tn_homeon= new Image;                                   
tn_homeon.src="images/tn_home-roll.gif";
tn_homeoff= new Image;                                   
tn_homeoff.src="images/tn_home.gif";

tn_previewon= new Image;                                   
tn_previewon.src="images/tn_preview-roll.gif";
tn_previewoff= new Image;                                   
tn_previewoff.src="images/tn_preview.gif";

tn_geton= new Image;                                   
tn_geton.src="images/tn_get-roll.gif";
tn_getoff= new Image;                                   
tn_getoff.src="images/tn_get.gif";

tn_featuredon= new Image;                                   
tn_featuredon.src="images/tn_featured-roll.gif";
tn_featuredoff= new Image;                                   
tn_featuredoff.src="images/tn_featured.gif";

tn_facultyon= new Image;                                   
tn_facultyon.src="images/tn_faculty-roll.gif";
tn_facultyoff= new Image;                                   
tn_facultyoff.src="images/tn_faculty.gif";

tn_featured1on= new Image;                                   
tn_featured1on.src="images/tn_featured1-roll.gif";
tn_featured1off= new Image;                                   
tn_featured1off.src="images/tn_featured1.gif";

tn_featured2on= new Image;                                   
tn_featured2on.src="images/tn_featured2-roll.gif";
tn_featured2off= new Image;                                   
tn_featured2off.src="images/tn_featured2.gif";

tn_featured3on= new Image;                                   
tn_featured3on.src="images/tn_featured3-roll.gif";
tn_featured3off= new Image;                                   
tn_featured3off.src="images/tn_featured3.gif";

tn_featured4on= new Image;                                   
tn_featured4on.src="images/tn_featured4-roll.gif";
tn_featured4off= new Image;                                   
tn_featured4off.src="images/tn_featured4.gif";

tn_featured5on= new Image;                                   
tn_featured5on.src="images/tn_featured5-roll.gif";
tn_featured5off= new Image;                                   
tn_featured5off.src="images/tn_featured5.gif";

tn_featuredconclusionon= new Image;                                   
tn_featuredconclusionon.src="images/tn_featuredconclusion-roll.gif";
tn_featuredconclusionoff= new Image;                                   
tn_featuredconclusionoff.src="images/tn_featuredconclusion.gif";

tn_featuredrefon= new Image;                                   
tn_featuredrefon.src="images/tn_featuredref-roll.gif";
tn_featuredrefoff= new Image;                                   
tn_featuredrefoff.src="images/tn_featuredref.gif";

tn_featureddownloadon= new Image;                                   
tn_featureddownloadon.src="images/tn_featureddownload-roll.gif";
tn_featureddownloadoff= new Image;                                   
tn_featureddownloadoff.src="images/tn_featureddownload.gif";


tn_getviewerson= new Image;                                   
tn_getviewerson.src="images/tn_getviewers-roll.gif";
tn_getviewersoff= new Image;                                   
tn_getviewersoff.src="images/tn_getviewers.gif";

tn_getmaterialson= new Image;                                   
tn_getmaterialson.src="images/tn_getmaterials-roll.gif";
tn_getmaterialsoff= new Image;                                   
tn_getmaterialsoff.src="images/tn_getmaterials.gif";

tn_getorderon= new Image;                                   
tn_getorderon.src="images/tn_getorder-roll.gif";
tn_getorderoff= new Image;                                   
tn_getorderoff.src="images/tn_getorder.gif";

tn_getevalon= new Image;                                   
tn_getevalon.src="images/tn_geteval-roll.gif";
tn_getevaloff= new Image;                                   
tn_getevaloff.src="images/tn_geteval.gif";


tn_previewviewerson= new Image;                                   
tn_previewviewerson.src="images/tn_previewviewers-roll.gif";
tn_previewviewersoff= new Image;                                   
tn_previewviewersoff.src="images/tn_previewviewers.gif";

tn_previewvideotapeon= new Image;                                   
tn_previewvideotapeon.src="images/tn_previewvideotape-roll.gif";
tn_previewvideotapeoff= new Image;                                   
tn_previewvideotapeoff.src="images/tn_previewvideotape.gif";


ln_resourceson= new Image;                                   
ln_resourceson.src="images/ln_resources-roll.gif";
ln_resourcesoff= new Image;                                   
ln_resourcesoff.src="images/ln_resources.gif";

ln_contacton= new Image;                                   
ln_contacton.src="images/ln_contact-roll.gif";
ln_contactoff= new Image;                                   
ln_contactoff.src="images/ln_contact.gif";

ln_con_evalon= new Image;                                   
ln_con_evalon.src="images/ln_con_eval-roll.gif";
ln_con_evaloff= new Image;                                   
ln_con_evaloff.src="images/ln_con_eval.gif";

ln_creditson= new Image;                                   
ln_creditson.src="images/ln_credits-roll.gif";
ln_creditsoff= new Image;                                   
ln_creditsoff.src="images/ln_credits.gif";

ln_policieson= new Image;                                   
ln_policieson.src="images/ln_policies-roll.gif";
ln_policiesoff= new Image;                                   
ln_policiesoff.src="images/ln_policies.gif";

ln_acrobaton= new Image;                                   
ln_acrobaton.src="images/ln_acrobat-roll.gif";
ln_acrobatoff= new Image;                                   
ln_acrobatoff.src="images/ln_acrobat.gif";

ln_pol_mainon= new Image;                                   
ln_pol_mainon.src="images/ln_pol_main-roll.gif";
ln_pol_mainoff= new Image;                                   
ln_pol_mainoff.src="images/ln_pol_main.gif";

ln_pol_medicalon= new Image;                                   
ln_pol_medicalon.src="images/ln_pol_medical-roll.gif";
ln_pol_medicaloff= new Image;                                   
ln_pol_medicaloff.src="images/ln_pol_medical.gif";

ln_pol_privacyon= new Image;                                   
ln_pol_privacyon.src="images/ln_pol_privacy-roll.gif";
ln_pol_privacyoff= new Image;                                   
ln_pol_privacyoff.src="images/ln_pol_privacy.gif";

ln_pol_linkson= new Image;                                   
ln_pol_linkson.src="images/ln_pol_links-roll.gif";
ln_pol_linksoff= new Image;                                   
ln_pol_linksoff.src="images/ln_pol_links.gif";

ln_pol_limitationson= new Image;                                   
ln_pol_limitationson.src="images/ln_pol_limitations-roll.gif";
ln_pol_limitationsoff= new Image;                                   
ln_pol_limitationsoff.src="images/ln_pol_limitations.gif";

ln_pol_policyon= new Image;                                   
ln_pol_policyon.src="images/ln_pol_policy-roll.gif";
ln_pol_policyoff= new Image;                                   
ln_pol_policyoff.src="images/ln_pol_policy.gif";

ln_res_mainon= new Image;                                   
ln_res_mainon.src="images/ln_res_main-roll.gif";
ln_res_mainoff= new Image;                                   
ln_res_mainoff.src="images/ln_res_main.gif";

ln_res_roleson= new Image;                                   
ln_res_roleson.src="images/ln_res_roles-roll.gif";
ln_res_rolesoff= new Image;                                   
ln_res_rolesoff.src="images/ln_res_roles.gif";

ln_res_linkson= new Image;                                   
ln_res_linkson.src="images/ln_res_links-roll.gif";
ln_res_linksoff= new Image;                                   
ln_res_linksoff.src="images/ln_res_links.gif";

ln_res_geneticon= new Image;                                   
ln_res_geneticon.src="images/ln_res_genetic-roll.gif";
ln_res_geneticoff= new Image;                                   
ln_res_geneticoff.src="images/ln_res_genetic.gif";

ln_res_searchon= new Image;                                   
ln_res_searchon.src="images/ln_res_search-roll.gif";
ln_res_searchoff= new Image;                                   
ln_res_searchoff.src="images/ln_res_search.gif";

ln_res_newson= new Image;                                   
ln_res_newson.src="images/ln_res_news-roll.gif";
ln_res_newsoff= new Image;                                   
ln_res_newsoff.src="images/ln_res_news.gif";

ln_res_materialson= new Image;                                   
ln_res_materialson.src="images/ln_res_materials-roll.gif";
ln_res_materialsoff= new Image;                                   
ln_res_materialsoff.src="images/ln_res_materials.gif";



}

function rollon(name) {
  if (document.images) {
    document[name].src = eval(name + "on.src");
  }
}

function rolloff(name) {
  if (document.images) {
    document[name].src = eval(name + "off.src");
  }
}