var imageFiles_a_7 = new Array();
imageFiles_a_7['0'] = new Array ('_images/a_HOME.gif', '_images/a_HOMEMouseover.gif');
imageFiles_a_7['1'] = new Array ('_images/a_LINE_CARD.gif', '_images/a_LINE_CARDMouseover.gif');
imageFiles_a_7['2'] = new Array ('_images/a_PRODUCTS.gif', '_images/a_PRODUCTSMouseover.gif');
imageFiles_a_7['3'] = new Array ('_images/a_CONTACT_US.gif', '_images/a_CONTACT_USMouseover.gif');

function image_on_a_7 (position) {
   var doc = eval("document.imagea_7" + position);
   doc.src = imageFiles_a_7[position][1];
}

function image_off_a_7 (position) {
   var doc = eval("document.imagea_7" + position);
   doc.src = imageFiles_a_7[position][0];
}