// JavaScript Document
<!-- 
function check()  
{  
if (document.submitform.username.value =="") 
{ 
alert("请填写您的用户名！"); 
document.submitform.username.focus(); 
return false; 
}

if (document.submitform.email.value.length == 0) 
		{
		alert("请输入Email！");
		document.submitform.email.focus();
		return false;
		}
		if (document.submitform.email.value.charAt(0)=="." ||        
		 document.submitform.email.value.charAt(0)=="@"||       
		 document.submitform.email.value.indexOf('@', 0) == -1 || 
		 document.submitform.email.value.indexOf('.', 0) == -1 || 
		 document.submitform.email.value.lastIndexOf("@")==document.submitform.email.value.length-1 || 
		 document.submitform.email.value.lastIndexOf(".")==document.submitform.email.value.length-1)
		{
		alert("Email的格式不正确！");
		document.submitform.email.focus();
		return false;
		}

if (document.submitform.tel.value =="") 
{ 
alert("请填写您的电话！"); 
document.submitform.tel.focus(); 
return false; 
} 

if (document.submitform.info_title.value =="") 
{ 
alert("请填写反馈信息主题"); 
document.submitform.info_title.focus(); 
return false; 
} 
if (document.submitform.info_body.value =="") 
{ 
alert("请留言"); 
document.submitform.info_body.focus(); 
return false; 
} 

if (document.submitform.email.value =="")
{
document.submitform.email.value ="xiaoheyu@csnewpower.com"
}
var filter=/^\s*([A-Za-z0-9_-]+(\.\w+)*@(\w+\.)+\w{2,3})\s*$/;
if (!filter.test(document.submitform.email.value)) { 
document.submitform.email.value ="xiaoheyu@csnewpower.com"
} 


document.submitform.submit() 
}  




//-->