function CheckForm(){
		
	var postFix;
	var file=NewRemark.file1.value;
	postFix=file.substr(file.lastIndexOf('.')+1)
	if(postFix>'' & postFix.toLowerCase()!='gif' & postFix.toLowerCase()!='jpg' & postFix.toLowerCase()!='bmp' & postFix.toLowerCase()!='png')
	{
		alert('只能上传 gif,jpg,png,bmp 类型图片');
		return false;
	}
	

  String.prototype.Trim = function(){return this.replace(/^\s+|\s+$/g,"");}
  var iu, iuu, regArray=new Array("","<",">","'",";");
  iuu=regArray.length;
  if(NewRemark.name.value.Trim()==""){
    alert("请输入您的用户名！");
    NewRemark.name.focus();
    return false;
  }
  if(document.NewRemark.name.value.Trim().length>20){
    alert("用户名必须是长度为1到20位的字符组合！");
    NewRemark.name.focus();
    return false;
  }
  for(iu=1;iu<=iuu;iu++){
	if(document.NewRemark.name.value.indexOf(regArray[iu])!=-1){
	  alert("用户名不可以包含：" + regArray[iu]);
	  document.NewRemark.name.focus();
	  return false;
	}
  }
  if(NewRemark.password.value.Trim()==""){
    alert("请设置您的登录密码！");
    NewRemark.password.focus();
    return false;
  }
  if(document.NewRemark.password.value.Trim().length>20){
    alert("密码必须是长度为1到20位的字符组合！");
    NewRemark.password.focus();
    return false;
  }
  for(iu=1;iu<=iuu;iu++){
	if(document.NewRemark.password.value.indexOf(regArray[iu])!=-1){
	  alert("密码不可以包含：" + regArray[iu]);
	  document.NewRemark.password.focus();
	  return false;
	}
  }
  if(NewRemark.re_pass.value.Trim()==""){
    alert("请再次输入您的密码！");
    NewRemark.re_pass.focus();
    return false;
  }
  if(NewRemark.re_pass.value!=NewRemark.password.value){
    alert("两次密码输入不一致！");
    NewRemark.re_pass.focus();
    return false;
  }
  if(NewRemark.email.value.Trim()==""){
    alert("请填写您的Email地址！");
    NewRemark.email.focus();
    return false;
  }
  var parth=/^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
  if(!parth.test(NewRemark.email.value)){
    alert("Email地址格式错误，请正确填写您的Email地址！");
    NewRemark.email.focus();
    return false;
  }
  for(iu=1;iu<=iuu;iu++){
	if(document.NewRemark.email.value.indexOf(regArray[iu])!=-1){
	  alert("Email地址不可以包含：" + regArray[iu]);
	  document.NewRemark.email.focus();
	  return false;
	}

	
  } 
  document.all.NewRemark.submit();  
}