Can't acess jqueryui.com

Can't acess jqueryui.com

Can someone help me..I'm currently having problems accessing  the "jqueryui.com" site. It always goes to a connection timed out error page. I really need to use jquery ui for a project in school. My friends having the same ISP as mine can access the site but not me. I thought that maybe my IP has been blocked in accessing this particular site so can someone check it out please...thanks in advance for the help...

BTW this is my IP : 12.198.64.67