Including single quotes in an inline javascript

Hello,
I need help please,.. all i wanted is to have this output

<span onclick="myfunction('1','2','3')">Link</span>

my script is:

<span class="clickable" onclick=\"myfunction("'+data.tid+'","'+data.startpay+'","'+data.endpay+'")\">' + data.emp + '</span>

This doesn't seem to work right as when i look into my console the output is:

<span class="clickable" onclick="myfunction(" 34","","")"="">Link</span>

all i wanted is to output this like

<span onclick="myfunction('1','2','3')">Link</span>

Thank you

 

@sarahk:
javascript, since (s)he is using '+' to concatenate strings, not '.'

@neilfurry:
why don't use a bit of modern way to inject <span> ?
untested, but it looks something like below:

var span = target_element.appendChild(document.createElement('span'));
span.appendChild(document.createTextNode(data.emp));
span.className = 'clickable';
span.addEventListener('click', function(){
    myfunction(data.tid, data.startpay, data.endpay);
}, false);

Code (JavaScript):

it's lenghtier, but tidier