function check_Reg(){
	//验证用户注册信息
	var txt_username=trim(document.all("txt_username").value)			//用户名
	var txt_userpass=trim(document.all("txt_userpass").value)			//密码
	var txt_xingming=trim(document.all("txt_xingming").value)	        //真实姓名
	var txt_title=trim(document.all("txt_title").value)	                //头衔
	var txt_mail=trim(document.all("txt_mail").value)				    //邮箱
	var txt_guojia=trim(document.all("txt_guojia").value)	            //国家
	
	if (txt_username==""){
		alert("Please input the userid！");
		document.all("txt_username").select();
		return false;
	}
	if (txt_userpass==""){
		alert("Please input the password!");
		document.all("txt_userpass").select();
		return false;			
	}
	if (txt_xingming==""){
		alert("Please input your name!");
		document.all("txt_xingming").select();
		return false;			
	}
	if (txt_title==""){
		alert("Please input your Title！");
		document.all("txt_title").select();
		return false;
	}
	if (txt_mail==""){
		alert("Please input your e-mail！");
		document.all("txt_mail").select();
		return false;
	}
	if(txt_mail!=""){
		if(txt_mail.indexOf('@') == -1){
			alert("E-mail input error.");
			document.all("txt_mail").select();
			return false;
		}
		if(txt_mail.indexOf('.') == -1){
			alert("E-mail input error.");
			document.all("txt_mail").select();
			return false;
		}		
	}
	if (txt_guojia==""){
		alert("Please input your Country！");
		document.all("txt_guojia").select();
		return false;
	}
	
	document.frmName.submit()
}