var itimes=1
		function titleprompt(){
		//alert(itimes);
		if (itimes<5){
		document.title="中国植物化工网版权所有！";
		window.focus();
		setTimeout("titleprompt()",3000);
		itimes=itimes+1;}
		else
		{document.title=document.tag;}
		}

	function right() 
	{
	    if (window.event.button == 2 || window.event.button == 3)
	    {
	    	//alert("中国植物化工网版权所有！");
	      //window.status="中国植物化网";
	      //  PopOldFriend();
	      
	      // alert(document.title);
				document.tag=document.title;
	      titleprompt();
	        return false;
	    }
	   return false;
	}
	document.body.onmousedown=right
	
	function myKeyDown()
	{
	   if( event.keyCode==17 || event.keyCode==18 )
	   {
	      //alert("中国植物化工网版权所有！");
	      //PopOldFriend()
	      return false
	   }
	}
	window.document.onkeydown = myKeyDown;
	
	function NoRight(){return false} 
	document.body.oncontextmenu=NoRight
	document.body.onselectstart=NoRight

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