User:GhostInTheMachine/NoEditSummary.js Source: en.wikipedia.org/wiki/User:GhostInTheMachine/NoEditSummary.js

//  warn if an edit has no summary text
//  suggested by [[User:SD0001]]

$(function(){
	var r=$("#wpSummaryWidget input");
	$("#wpSaveWidget input")
	.on("mouseover",function(){
		r.val().trim() || (window.editSumOrigBorder=r.css("border"), r.css("border", "solid 2px red"));
	})
	.on("mouseout",function(){
		r.css("border", window.editSumOrigBorder);
	});
});