function adv(){
  var obj=document.getElementById('_adv');
  document.location='http://www.chinaacoustic.com/warning.htm';
	//window.open ('http://www.chinaacoustic.com/warning.htm', 'newwindow', 'height=400, width=1000, top=0, left=0, toolbar=no, menubar=no, scrollbars=yes, resizable=no,location=no, status=no') 

}

adv();