text: function clickIE(){
  	if (document.all){
  		return false;
  	}else{
  		return true;
  	}
  }
  
  function clickNS(e) {
  	if(document.layers || (document.getElementById && !document.all)){
  		if (e.which==2){
  			return false;
  		}else{
  			return true;
  		}
  	}else{
  		return true;
  	}
  }
  
  if (document.layers) {
  	document.captureEvents(Event.MOUSEDOWN);
  	document.onmousedown=clickNS;
  }else{
  	document.onmouseup=clickNS;
  	document.oncontextmenu=clickIE;
  }
  
  document.oncontextmenu=new Function("return false");