function PL_openBrWindow(theURL,winName,features) {
  window.open(theURL,'通知','scrollbars=yes,width=390,height=230');
}
function openpopup(theURL){
newWindow =window.open(theURL,'通知','scrollbars=yes,width=390,height=230,resizable=yes')
newWindow.focus();
}

function submitvote() {
//surveywin=window.open('about:blank','surveywin','scrollbars=yes,width=420,height=260,resizable=yes')
//document.voteform.target=surveywin;
document.voteform.submit();
}

function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) {
      offset += search.length
      end = document.cookie.indexOf(";", offset);
      if (end == -1)
         end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function loadpopup(theURL){
if (get_cookie('popped')==''){
openpopup(theURL)
document.cookie="popped=yes"
}
}

function PL_findObj(n, d) { 
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=PL_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function PL_validateForm() { 
  var i,p,q,nm,test,num,min,max,errors='',args=PL_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=PL_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('题目数应该是数字!!!');
  document.PL_returnValue = (errors == '');
}

function PL_swapImgRestore() { 
  var i,x,a=document.PL_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function PL_preloadImages() { 
  var d=document; if(d.images){ if(!d.PL_p) d.PL_p=new Array();
    var i,j=d.PL_p.length,a=PL_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.PL_p[j]=new Image; d.PL_p[j++].src=a[i];}}
}