add root url to href in jQuery

how can i add the root url to the href?

jQuery('#breadcrumb li').prepend('<li><a href="root url here">Home</a开发者_运维知识库> > </li>');

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jQuery('#breadcrumb li').prepend('<li><a href="/">Home</a> > </li>');

A slash will always point to the web root.

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var rooturl = http://example.com/;

jQuery('#breadcrumb li').prepend('<li><a href="' + rooturl + '">Home</a> > </li>');