Javascript error: TypeError: 'null' is not an object (evaluating 'event.target') on safari

Question

I have difficulty on integrating my JavaScript syntax. My code is working on Internet Explorer (IE). However, I encountered a JavaScript error when running it on Safari.

Answer 1

You're missing the event variable in your function

document.onmouseup = function hideaddrspopup (event) 
{   

   if (event.srcElement.id != 'fieldName' || event.target.id != 'fieldName')
   {   
     alert(event.srcElement.id);
     alert(event.target.id);
   }
}