function research_onsubmit() { 
 if(document.research.Options[0].checked==false &&document.research.Options[1].checked==false&&document.research.Options[2].checked==false&&document.research.Options[3].checked==false) 
 { 
 alert("对不起，如果要投票，不可漏选！") 
 return false 
 } 
 else 
 //javascript:window.open('','win','left=100,top=120,height=370,width=500')
 openwin('','win','460','250') 
 } 

function openwin(theURL,winName,winwidth,winheight) { 
var screenWidth=screen.width;
var screenHeight=screen.height;
var wintop=(screenHeight-parseInt(winheight))/2;
var winleft=(screenWidth-parseInt(winwidth))/2;
winfeatures='top='+wintop+',left='+winleft+',screenX=0,screenY=0,directories=0,fullscreen=0,width='+winwidth+',height='+winheight+',location=0,menubar=0,scrollbars=0,status=0,toolbar=0'
  window.open(theURL,winName,winfeatures);
}