var imageFiles_hv_21 = new Array();
imageFiles_hv_21['0'] = new Array ('_images/hv_SPIRIT.gif', '_images/hv_SPIRITMouseover.gif');
imageFiles_hv_21['1'] = new Array ('_images/hv_SPIRIT_TREADMILLS.gif', '_images/hv_SPIRIT_TREADMILLSMouseover.gif');
imageFiles_hv_21['2'] = new Array ('_images/hv_XT185.gif', '_images/hv_XT185Mouseover.gif');
imageFiles_hv_21['3'] = new Array ('_images/hv_XT285.gif', '_images/hv_XT285Mouseover.gif');
imageFiles_hv_21['4'] = new Array ('_images/hv_XT385.gif', '_images/hv_XT385Mouseover.gif');
imageFiles_hv_21['5'] = new Array ('_images/hv_XT485.gif', '_images/hv_XT485Mouseover.gif');
imageFiles_hv_21['6'] = new Array ('_images/hv_XT685.gif', '_images/hv_XT685Mouseover.gif');
imageFiles_hv_21['7'] = new Array ('_images/hv_CT_800.gif', '_images/hv_CT_800Mouseover.gif');
imageFiles_hv_21['8'] = new Array ('_images/hv_ST_8921.gif', '_images/hv_ST_8921Mouseover.gif');
imageFiles_hv_21['9'] = new Array ('_images/hv_ST_8940.gif', '_images/hv_ST_8940Mouseover.gif');

function image_on_hv_21 (position) {
   var doc = eval("document.imagehv_21" + position);
   doc.src = imageFiles_hv_21[position][1];
}

function image_off_hv_21 (position) {
   var doc = eval("document.imagehv_21" + position);
   doc.src = imageFiles_hv_21[position][0];
}