$(document).ready(function() {

   
    $('a img').click(function() {
        var Index = $(this).attr("Index");
        $("*[id$='BigPicture']").attr("src", "/Files/" + arrBigPicture[Index]);
        $("*[id$='Title']").html(arrTitle[Index]);
        $("*[id$='PressRelease']").attr("href", "/Files/" + arrPressRelease[Index]); 
     });
});