How to open the url link in new window or new tab in Sharepoint

Hello,

    Am having one custom list and one column name  contains type (Hyperlink & picture).I want to open this in a new tab on click I tried but i didn't get any solution even I follow this link also.

https://wb2-web.sharepoint.com/blog/Lists/Posts/Post.aspx?ID=9 

and I didn't get this line of code:     <a onfocus="OnLink(this)" href="{$url}" >  

Any Help