function check(){
	if(!trim(form.Name.value)){alert('．請輸入姓名');form.Name.focus();return false;}
	if(!trim(form.Company.value)){alert('．請輸入公司名稱');form.Company.focus();return false;}
	if(!trim(form.Tel.value)){alert('．請輸入電話');form.Tel.focus();return false;}
	if(!trim(form.Email.value)){alert('．請輸入電子信箱');form.Email.focus();return false;}
	if(form.Email.value.indexOf("@")=="-1" || form.Email.value.indexOf(".")=="-1"){alert("．不正確的電子信箱");form.Email.select();return false;}
	if(!trim(form.Content.value)){alert('．請輸入留言與意見');form.Content.focus();return false;}
        form.btnSubmit.disabled = true;
        form.submit();
}
function trim(instr){
        return instr.replace(/^[\s]*/gi,'').replace(/[\s]*$/gi,'');
}