var imageFiles_18_7 = new Array();
imageFiles_18_7['0'] = new Array ('_images/18_Mission_Statement__.gif', '_images/18_Mission_Statement__Mouseover.gif');
imageFiles_18_7['1'] = new Array ('_images/18_The_Commitment_of_our_Staff__.gif', '_images/18_The_Commitment_of_our_Staff__Mouseover.gif');
imageFiles_18_7['2'] = new Array ('_images/18_Bequests_and_Donations__.gif', '_images/18_Bequests_and_Donations__Mouseover.gif');
imageFiles_18_7['3'] = new Array ('_images/18_Publications.gif', '_images/18_PublicationsMouseover.gif');

function image_on_18_7 (position) {
   var doc = eval("document.image18_7" + position);
   doc.src = imageFiles_18_7[position][1];
}

function image_off_18_7 (position) {
   var doc = eval("document.image18_7" + position);
   doc.src = imageFiles_18_7[position][0];
}