jQuery Grid Plugin - jqGrid

I  have a grid that uses inline editing.  One of the column contains a large amount of text so I decided to create a link that would execute some javascript that would display the text in a dialog and allow editing.  After trying the standard link formatter I decided to write a custom formatter to format the link to call the javascript.  Here is a simple example of how the custom formatter works:

function formatNoteLink(cellvalue, objects, rowObjects){

if(cellvalue.length==0)
    cellvalue = "No note";

var formattedLink = "<a href=javascript:alert('"+cellvalue+"')>'Click for note'</a>";

return formattedLink;

}

If the cell value was blank what I would expect is that the returned value would look something like this:

<a href=javascript:alert('No note')>'Click for note'</a>

Instead I see something like this:

<a href="javascript:alert('No" note="" )="">'Click for note'</a>

It seems that the blanks in the cellvalue cause the string to be parsed incorrectly.  I don't know if this is a javascript issue or is something that jqgrid is causing. 

I am running jqGrid  3.7.1

Ideas?

Thanks,

Pete