function SetcontentHeight(obj)
{
 var content=obj;
 if (document.getElementById)
 {
  if (content && !window.opera)
  {
   if (content.contentDocument && content.contentDocument.body.offsetHeight) 

    content.height = content.contentDocument.body.offsetHeight; 
   else if(content.Document && content.Document.body.scrollHeight)
    content.height = content.Document.body.scrollHeight;
  }
 }
}


function formsub(i)
{
if (i==1){

if (document.form.company.value =="")
{
	if (document.form.username.value =="" || document.form.password.value =="")
{
alert("对不起，评论功能只对会员开放！");

return false;
}
}

if (document.form.title.value =="")
{
alert("请填写标题！");
document.form.title.focus();
return false;
}

if (document.form.content.value =="")
{
alert("请填写内容！");
document.form.content.focus();
return false;
}

document.form.submit();
}
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  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=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}