Quick questions regarding JS code in ECHO output

I'm trying to define a Google Analytic even tracker on one of my Buttons so i need to add onSubmit="_gaq.push(['_trackEvent', 'Button', 'Click', 'Compare']);"

the original line is echo '<input id="in_submit" type="submit" name="submit" value="Compare &gt;&gt;" />';
but if i'll put it like this echo '<input onSubmit="_gaq.push(['_trackEvent', 'Button', 'Click', 'Compare']);" id="in_submit" type="submit" name="submit" value="Compare &gt;&gt;" />';
it will give me an error..

any idea what's breaking this line ?

 

you have to escape the ' inside the echo statement

echo '<input onSubmit="_gaq.push([\'_trackEvent\', \'Button\', \'Click\', \'Compare\']);" id="in_submit" type="submit" name="submit" value="Compare &gt;&gt;" />';

PHP:

 

@Stephan Thanks a million !