'syntax error, unexpected T_CONSTANT_ENCAPSED_STRING' Adding google event tracking to button in WordPress Plugin

siggy_lxvi

I’m attempting to add a google event tracking to a wordpress plugin. The code for the submit button in this plugin is:

{
        return "<input  type="submit" ".
                "name="".fm_form_submit_btn_name()."" ".
                "id="".fm_form_submit_btn_id()."" ".
                "class="submit" ".
                "value="".fm_form_submit_btn_text()."" ".
                "onclick="".fm_form_submit_btn_script()."" ".
                "  />n";
    }

I’m trying to add google analytics tracking code onclick=_gaq.push(['_trackEvent', 'Form', 'Submit', 'Apply']) to the above block, and eventually replace 'Apply' with fm_form_the_title() which returns the title of the form.

The problem: No matter what arrangement of quotes I use when inserting the tracking code block, I am faced with an error ‘syntax error, unexpected T_CONSTANT_ENCAPSED_STRING’ or ‘T_STRING’ which shuts down the entire site.

EDIT: The code block above works, and does not need simplifying, and is part of a much larger project. My question is how to add onclick=_gaq.push(['_trackEvent', 'Form', 'Submit', 'Apply']) and eventually replace 'Apply' with fm_form_the_title() and NOT break my website.