if ( !s ) { 
if (!s) { 
Date.parse = function (s) {    var r = null;     if ( !s ) {         return null;     }    try {         r = Date.Grammar.start.call( {}, s );     } catch(e) {         return null;     }    return ( ( r[1].length == 0 ) ? r[0] : null );};
4137	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4137/888f4f7a78848981050d0238bac0029f91b045f6/parser-debug.js/clean/parser-debug.js