add html+text to input of type submit using javascript

I am using a smartsearchbox webpart, and I am adding the text value of its submit input using javascript, like this:$("#p_lt_ctl02_pageplaceholder_p_lt_ctl03_SmartSearchBox1_btnSearch").val('{%GetResourceString("search")%}'); now I want to append to the value a search icon using fontawesome library, how can I achieve that with javascript?