The window.onerror event provides a very simple way of supressing javascript errors. This does off course not solve any javascript error caused problem by itself, but it does provide a useful tool for supressing the symptoms while you're busy debugging errors in you javascript code.
The event fires whenever an javascript error occurs.
window.onerror = function(msg, url, linenumber){ //alert('Error message: '+msg+'\nURL: '+url+'\nLine Number: '+linenumber); return true; }