Patch for "Object does not support this property or method" problem

[David]

Hello,

Another patch. Sorry I can't remember which browsers this applied to, but I got the error "Object does not support this property or method" because the "title" propery of nodes is not always a string. The function checkElemBO does not verify that it is. I added the first line to checkElemBO :

function checkElemBO(txt) {
if (!txt || typeof(txt) != 'string') return false;
if ((txt.indexOf('header')>-1)&(txt.indexOf('body')>-1)&(txt.indexOf('[')>-1)&(txt.indexOf('[')>-1))
return true;
else
return false;
}

BTW Thanks for this great script.
Anselm.