var imageFiles_h4_1 = new Array();
imageFiles_h4_1['0'] = new Array ('_images/h4_Home.gif', '_images/h4_HomeMouseover.gif');
imageFiles_h4_1['1'] = new Array ('_images/h4_About_Us.gif', '_images/h4_About_UsMouseover.gif');
imageFiles_h4_1['2'] = new Array ('_images/h4_Our_Staff.gif', '_images/h4_Our_StaffMouseover.gif');
imageFiles_h4_1['3'] = new Array ('_images/h4_Contact_Us.gif', '_images/h4_Contact_UsMouseover.gif');
imageFiles_h4_1['4'] = new Array ('_images/h4_Links.gif', '_images/h4_LinksMouseover.gif');

function image_on_h4_1 (position) {
   var doc = eval("document.imageh4_1" + position);
   doc.src = imageFiles_h4_1[position][1];
}

function image_off_h4_1 (position) {
   var doc = eval("document.imageh4_1" + position);
   doc.src = imageFiles_h4_1[position][0];
}