Magento jQuery / Prototype Issues in 1.9 After upgrade -

after doing upgrade 1.3 ( , moving theme , couple of extensions - reasonably clean install) , having lot of jquery issues , prototype issues. example home page: class not defined , ajax not defined.

i'm not sure start looking looks lot of errors although can few things ok on site not many ajax type functions.

even js/varien/js.js file says $ not function.

help :-)

this looks jquery , or prototype lib missing or conflicting on install.

in theme, have make sur 3 lines appear in first in block of name head under node <default> on file app/design/frontend/your_package/your_theme/layout/page.xml , in exact order.

<action method="addjs"><script>prototype/prototype.js</script></action> <action method="addjs"><script>lib/jquery/jquery-1.10.2.min.js</script></action> <action method="addjs"><script>lib/jquery/noconflict.js</script></action> 

for information fresh installed page.xml stripped lines like

<?xml version="1.0"?> <layout version="0.1.0">     <default translate="label" module="page">         <label>all pages</label>         <block type="page/html" name="root" output="tohtml" template="page/3columns.phtml">             <block type="page/html_head" name="head" as="head">                 <action method="addjs"><script>prototype/prototype.js</script></action>                 <action method="addjs"><script>lib/jquery/jquery-1.10.2.min.js</script></action>                 <action method="addjs"><script>lib/jquery/noconflict.js</script></action>             </block>         </block>     </default> </layout> 

and have check 3 files exists on server

js/prototype/prototype.js js/lib/jquery/jquery-1.10.2.min.js js/lib/jquery/noconflict.js 

if not, them fresh copy of magento.