taglib - Create new custom tag from netui select tag -

for example, have code:

enter code here <netui:select id="smt" datasource="smt" > <netui:selectoption value="1" title="one">red</netui:selectoption> <netui:selectoption value="2" title="two">green</netui:selectoption> <netui:selectoption value="3" title="three">blue</netui:selectoption> </netui:select> <div>this new custom tag</div> 

how can turn code above 1 custom tag?