<SCRIPT Language="Javascript">
<!-- 감춤
nWin='';
nW=800;
nH=600;
gap=1;
function NewShow(sURL,nW,nH){
  var status = 'width='+nW+',height='+nH+',left=50,top=250,toolbar=no,resizable=yes';
  if (nWin) nWin=''; 
  if (!nWin) nWin = window.open(sURL,'nShow',status);
  nWin.resizeTo(nW,nH);
  nWin.focus();
}

function stepWin(sURL){
  var status = 'width='+nW+',height='+nH+',left=50,top=250,toolbar=no,resizable=yes';
  if (nWin) nWin=''; 
  if (!nWin) nWin = window.open(sURL,'nShow',status);
  alert('크기가 점진적으로 달라짐')
  fW = nWin.document.body.clientWidth;
  if (fW <= 400){
    fH=300;
    nW=800;
    nH=600;
    for (i=fW;i <= nW;i+=gap){
      nWin.resizeTo(i,(((fH-nH)/(fW-nW))*i));
      nWin.focus();
    }
  } else {
    fH=600;
    nW=400;
    nH=300;
    for (i=fW;i >= nW;i-=gap){
      nWin.resizeTo(i,(((fH-nH)/(fW-nW))*i));
      nWin.focus();
    }
  }
}
// 감춤 끝  -->
</SCRIPT>
<BUTTON onclick="NewShow('xzframe1.html','400','300')">400,300 열기</BUTTON>
<BUTTON onclick="NewShow('xzframe1.html','800','600')">800,600 열기</BUTTON> 
<BUTTON onclick="stepWin('xzframe1.html')">400,300<==>800,600 점진적 열기</BUTTON>