var imageFiles_4u_19 = new Array();
imageFiles_4u_19['0'] = new Array ('_images/4u_Home.gif', '_images/4u_HomeMouseover.gif');
imageFiles_4u_19['1'] = new Array ('_images/4u_Cart.gif', '_images/4u_CartMouseover.gif');
imageFiles_4u_19['2'] = new Array ('_images/4u_Draw_Cities.gif', '_images/4u_Draw_CitiesMouseover.gif');
imageFiles_4u_19['3'] = new Array ('_images/4u_Sample_Results.gif', '_images/4u_Sample_ResultsMouseover.gif');
imageFiles_4u_19['4'] = new Array ('_images/4u_Contact_Us.gif', '_images/4u_Contact_UsMouseover.gif');
imageFiles_4u_19['5'] = new Array ('_images/4u_References.gif', '_images/4u_ReferencesMouseover.gif');
imageFiles_4u_19['6'] = new Array ('_images/4u_Feedback.gif', '_images/4u_FeedbackMouseover.gif');
imageFiles_4u_19['7'] = new Array ('_images/4u_Order_Tests.gif', '_images/4u_Order_TestsMouseover.gif');

function image_on_4u_19 (position) {
   var doc = eval("document.image4u_19" + position);
   doc.src = imageFiles_4u_19[position][1];
}

function image_off_4u_19 (position) {
   var doc = eval("document.image4u_19" + position);
   doc.src = imageFiles_4u_19[position][0];
}