var message = "";
var ret = 'false';
var cm = null;

//document.oncontextmenu = click;
//cm = setTimeout("ret = 'true';", 750);

function open_print(url){
	win = window.open(url,"win","resizable=yes, menubar=yes, status=no, scrollbars=yes, toolbar=no, location=no, resize=yes, width=720, height=480, left=50, top=20");
	win.focus();
	}

function mouse_event(){
	if(event && event.button && event.button == 3){
		history.go(3-2*btn);
		return false;
		}
	btn = event.button;
	}

function click(){
	if (document.all){
		(message);
		if (ret == 'false') return false;
		else return true;
		}
	}