Bookmarklet to get branch name (original)

boo.js

(function($,window,undefined){
	var key    = $("#key-val").text(),
	    descr  = $("h1").text(),
	    errors = "",
	    sprintLabels = $.grep(jQuery("ul.labels li"),function(el){
		return $(el).text().match(/sprint/);
	    });
	if(!key.length)          errors += "Key is not defined\n";
	if(!descr.length)        errors += "Description is not defined\n";
	if(!sprintLabels.length) errors += "Sprint label is not defined\n";
	if(errors.length){
		alert(errors);
		return;
	}
	var sprint     = $(sprintLabels[0]).text(),
	    branchName = sprint+'_UA_'+key+'_'+descr.toLowerCase().replace(/\(\)/g,'').replace(/\W/g,'_').replace(/_+/g,'_').replace(/_$/g,'');
	window.prompt("Branch name:\n" + branchName + "\n" + "Create branch:\ngit checkout -b " + branchName  , branchName );

})(jQuery,window);