// JavaScript Document
function chk(form)
{
 if(form.Name.value=="")
 {alert('请填写联系人姓名！');
  form.Name.focus();
  return false;}
 if(form.Tel.value=="")
 {alert('请填写联系电话！');
  form.Tel.focus();
  return false;}
 if(form.Email.value=="")
 {alert('请填写电子邮箱地址！');
 form.Email.focus();
 return false;}
 if(form.Content.value=="")
 {alert('请填写需求内容！');
 form.Content.focus();
 return false;} 
 if(form.verifycode.value=="")
 {
  alert("请填写验证码！")
  form.verifycode.focus();
  return false;
  }
  }


var errcode='';
function gosubmit()
{
  if(errcode=='')document.SendForm.submit();
}
function chk1(form)
{
  errcode='';
  for(var i=0;i<form.length;i++)
  {
    if(form[i].type!='hidden')
    {
	   form[i].focus();
       form[i].blur();
	}
  }
setTimeout("gosubmit()",500);
return false;
}
function rgetspan(gobj,grdes)
{
   if(document.getElementById(gobj.name+"span"))gobj.parentNode.removeChild(document.getElementById(gobj.name+"span"));
   var newspan=document.createElement("span");  
　 var newtext=document.createTextNode(grdes);
   newspan.setAttribute("id",gobj.name+"span");
   newspan.appendChild(newtext); 
　 gobj.parentNode.appendChild(newspan); 　
   newspan.style.padding='2px';
   newspan.style.fontSize='12px';
   newspan.style.color='#333333';
}
function egetspan(gobj,gedes)
{
   errcode+=','+gobj.name+',';
   if(document.getElementById(gobj.name+"span"))gobj.parentNode.removeChild(document.getElementById(gobj.name+"span"));
   var newspan=document.createElement("span");  
　 var newtext=document.createTextNode(gedes);
   newspan.setAttribute("id",gobj.name+"span");
   newspan.appendChild(newtext); 
　 gobj.parentNode.appendChild(newspan); 　
   newspan.style.padding='2px';
   newspan.style.fontSize='12px';
   newspan.style.color='#ff0000';
}
function checkinput(obj,value,type,lenmax,lenmin,edes,rdes)
{
//检查字符串(长度)
  if(type=='vstr')
  {
     if(value.length>lenmax||value.length<lenmin)
     {
       egetspan(obj,edes);
	 }
	 else
	 {
       rgetspan(obj,rdes);
	 }
  } 
//检查数值
  if(type=="vint")
  {
     if(isNaN(value)||value.length<lenmin)
	 {
       egetspan(obj,edes);
	 }
	 else
	 {
       rgetspan(obj,rdes);
	 }
  }
//检查邮箱
  if(type=="vemail")
  {
     var emailPat=/^(.+)@(.+)$/;
     var matchArray=value.match(emailPat);  
     if(matchArray==null||value.length<lenmin)
	 {
       egetspan(obj,edes);
	 }
     else
	 {
       rgetspan(obj,rdes);
	 }
  }
//检查日期
//检查时间
}