var imageFiles_ih_4 = new Array();
imageFiles_ih_4['0'] = new Array ('_images/ih_Sign_Up.gif', '_images/ih_Sign_UpMouseover.gif');
imageFiles_ih_4['1'] = new Array ('_images/ih_My_Account.gif', '_images/ih_My_AccountMouseover.gif');
imageFiles_ih_4['2'] = new Array ('_images/ih_Help.gif', '_images/ih_HelpMouseover.gif');

function image_on_ih_4 (position) {
   var doc = eval("document.imageih_4" + position);
   doc.src = imageFiles_ih_4[position][1];
}

function image_off_ih_4 (position) {
   var doc = eval("document.imageih_4" + position);
   doc.src = imageFiles_ih_4[position][0];
}