dynamically add contols in ruby on rails form using javascript

Question

I am trying to add controls dynamically using javascript add button. It is working fine with simple strings in javascript as follows:

 var input="";
 input2 = "<select name='parameterUniversity["+ updated_row_num +"]' id='ddl_university'>";
 for(i=0;i<10<i++)
    input += "<option  value='"+i+"'>" + i + "</option>";
 input+="</select>"; 

but when i try to use

 var input="";
 input = "<select name='parameterUniversity["+ updated_row_num +"]' id='ddl_university'>";
 <% @Universites.each_with_index do |u| %>
    input += "<option text='" +<%= u.University %>+ "' value='" + <%= u.id %> + "'>" + <%= u.University %> + "</option>";
 <% end %>  
 input+="</select>"; 

it submits the page when i click on Add button, please let me know what i have done wrong. it should work as we are replacing simple string with this server type string.

Edit Error in console is

SyntaxError: missing ; before statement

i am unable to locate this error

Regards.