I have a static resource javascript file with code -

var strTbl1='';
strTbl1+='<table>';
strTbl1+='<tr>';
strTbl1+='<td align="center" width="15" height="20"> <img src="cancel.png" border="0"/> </td>';
strTbl1+='</tr>';
strTbl1+='</table>';

I have an image, it is not in zip file, with name "cancel" in static resource.
How can replace  "<img src="cancel.png" border="0"/>" with static resource image?