var imageFiles_1yfl7_4 = new Array();
imageFiles_1yfl7_4['0'] = new Array ('_images/1yfl7_Home.gif', '_images/1yfl7_HomeMouseover.gif');
imageFiles_1yfl7_4['1'] = new Array ('_images/1yfl7_Contact_Us.gif', '_images/1yfl7_Contact_UsMouseover.gif');
imageFiles_1yfl7_4['2'] = new Array ('_images/1yfl7_Biographies.gif', '_images/1yfl7_BiographiesMouseover.gif');
imageFiles_1yfl7_4['3'] = new Array ('_images/1yfl7_Projects.gif', '_images/1yfl7_ProjectsMouseover.gif');
imageFiles_1yfl7_4['4'] = new Array ('_images/1yfl7_Links.gif', '_images/1yfl7_LinksMouseover.gif');
imageFiles_1yfl7_4['5'] = new Array ('_images/1yfl7_Losch_Software__LLC.gif', '_images/1yfl7_Losch_Software__LLCMouseover.gif');

function image_on_1yfl7_4 (position) {
   var doc = eval("document.image1yfl7_4" + position);
   doc.src = imageFiles_1yfl7_4[position][1];
}

function image_off_1yfl7_4 (position) {
   var doc = eval("document.image1yfl7_4" + position);
   doc.src = imageFiles_1yfl7_4[position][0];
}