var imageFiles_13_19 = new Array();
imageFiles_13_19['0'] = new Array ('_images/13_Home.gif', '_images/13_HomeMouseover.gif');
imageFiles_13_19['1'] = new Array ('_images/13_About_Us.gif', '_images/13_About_UsMouseover.gif');
imageFiles_13_19['2'] = new Array ('_images/13_Email_Us.gif', '_images/13_Email_UsMouseover.gif');
imageFiles_13_19['3'] = new Array ('_images/13_Contact.gif', '_images/13_ContactMouseover.gif');
imageFiles_13_19['4'] = new Array ('_images/13_Questions.gif', '_images/13_QuestionsMouseover.gif');
imageFiles_13_19['5'] = new Array ('_images/13_Metro_Careers.gif', '_images/13_Metro_CareersMouseover.gif');

function image_on_13_19 (position) {
   var doc = eval("document.image13_19" + position);
   doc.src = imageFiles_13_19[position][1];
}

function image_off_13_19 (position) {
   var doc = eval("document.image13_19" + position);
   doc.src = imageFiles_13_19[position][0];
}