//
//	cancel popup script for IE
// 
function DisableOnContextMenu() {
	if(event.srcElement.tagName == "IMG") return false;
	return true;
}

function DisableContextMenu() {
	var ev = event;
  if (ev) {
    if (ev.button && ev.button == 2) {  // W3C DOM2
      if(ev.srcElement.tagName == "IMG") return false;
    } else if (!ev.button && ev.which == 3) {  // N4
      if(ev.srcElement.tagName == "IMG") return false;
    } else if (navigator.platform.indexOf("Mac")!=-1
      && navigator.appName == "Netscape") {
      if(ev.srcElement.tagName == "IMG") return false;
    }
  } else {
    if (event && event.button && event.button == 2) {  // IE
      if(ev.srcElement.tagName == "IMG") return false;
    }
  }
}

if (navigator.appName == "Netscape"
  && !(navigator.platform.indexOf("Mac")!=-1)) {
  document.captureEvents(Event.MOUSEDOWN);
}

document.onmousedown=DisableContextMenu;
document.oncontextmenu=DisableOnContextMenu;