Works in IE7 but not in IE8

JavaScript
1

check out this page http://qa-www.inmarkit.net/cu.php (you might see an ERROR like “Notice: Undefined index: SCRIPT_URI … on line 23” THAT’S FINE - that page sets a cookie to allow you to see the header with login on homepage)

then go to the homepage: http://qa-www.inmarkit.net/

and try to click on “Log In” in top right corner

a overlay with iFrame opens IE7 but not in IE8

can anyone point me in the right direction…

what’s the right way to handle something like this? approach? steps? techniques? tools?

Thank you…
PS Looking for general advise - but perhaps you are up to the challenge and see the exact cause?

2

Just loading the home page shows the following scripting errors:

prototype.js Line: 4821
Error: Object doesn’t support this property or method

var nodes = $(element).getElementsByTagName('*');

jquery.easing.1.3.js Line: 39
Error: ‘jQuery.easing’ is null or not an object

jQuery.easing['jswing'] = jQuery.easing['swing'];

wz_tooltip.js Line: 319
Error: Object required

tt_ie56 = parseFloat(nv.substring(nv.indexOf("MSIE") + 5)) >= 5.5
    && typeof document.body.style.maxHeight == tt_u;

landing.js Line: 5
Error: Object doesn’t support this property or method

$(document).ready(function(){

qa-www.inmarket.net Line: 110
Error: Object doesn’t support this property or method

jQuery('#gl_search').click(function(){

auth.manager.js Line: 696
Error: Object doesn’t support this property or method

$(document).ready(function(){