rem: if(is_IE5) { l.length = l.length + 1; for (var i=l.length-1; i>0; i--) { l[i] = l[i-1]; } l[0] = s; return l.length; 
add: l.length = l.length + 1; for (var i=l.length-1; i>0; i--) { l[i] = l[i-1]; 
context: function do_unshift(l, s) {  if(is_IE5) {    l.length = l.length + 1;    for (var i=l.length-1; i>0; i--) {      l[i] = l[i-1];    }    l[0] = s;    return l.length;  }  else {    return l.unshift(s);  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/16f7d90c34019576dc7ede344f4d4fb5802205bd/quicksearch.js/buggy/webtools/bugzilla/quicksearch.js