Creating rows from JSON data
Not really. It hard to optimize something with little logic. You could do this instead:

var row =
    "&lt;tr class='Row' onclick=\"AnotherUnrelatedFunction('" + a + "' , '" + b + "', '" + c + "', '" + d + "', '" + e + "', '" + f + "')\&gt; \
       &lt;div class='mr'&gt; \
           &lt;td class='mc mci'&gt; \
               &lt;div class='mcit'&gt;" + a + "&lt;/div&gt; \
           &lt;/td&gt; \
       &lt;/div&gt; \
    &lt;/tr&gt;";


But aside from that looks good!