Bookmarklet to Highlight WARN / ERROR in Jenkins

jenkins-bookmarklet

javascript:{var elems = document.getElementsByTagName('pre'), i, j;
for (i in elems) {
	if(elems[i].id.indexOf("out") == -1) {
		var lines = elems[i].innerHTML.split("\n");
		var out = "";
		for( j in lines ) {
			if(lines[j].length > 0 && (""+lines[j]).indexOf("[ERROR]") > 0) {
				lines[j] = "<span style=\"background-color:red;color:white\">" + lines[j] + "</span>";
			}
			else if(lines[j].length > 0 && (""+lines[j]).indexOf("[WARN]") > 0) {
				lines[j] = "<span style=\"background-color:yellow;\">" + lines[j] + "</span>";
			}
			out += lines[j] + "\n";
		}
		elems[i].innerHTML = out;
	}
};void(0);}