javascript event 등록

function keydown2(e)
{
	e= event;
	if ( e.keyCode == 65 ) {
		alert('hit2 : ' + e.keyCode);
 	}
}
 
function showIFrame() {
	document.write("<IFRAME src="http://www.naver.com" id='id_browser' frameborder=0 width=500 height=500 ></IFRAME>");
	var frm = document.getElementById("id_browser");
	if (frm == null) return;
	var fDoc = frm.contentWindow || frm.contentDocument;
	if (fDoc.document) {
		fDoc = fDoc.document;
		if (fDoc.addEventListener) {
 	            fDoc.addEventListener("keydown",keydown2,false);
		}
  	}
}