hijacking clicks using "capturing phase" event handler

gistfile1.js

// hijack the next click anywhere

if (document.addEventListener) {
	document.addEventListener("click",function handler(evt){
		evt.preventDefault();
		evt.stopPropagation();
		evt.stopImmediatePropagation();
	
		document.removeEventListener("click",handler,true);
	
		// now do whatever else in response to the hijacked click

	},/*capturing=*/true);
}