<!--checkCol.js (cj)--
String.prototype.trim = function()
{
    return this.replace(/(^s*)|(s*$)/g, "");
}

//檢查欄位是否空白
function check_null(column,name){
  if(column.length == 0)
    return "‧"+name+"欄不能空白!\n";
  return "";
}

//檢查email address格式是否正確
function check_email(mail_str){
	var email = mail_str.trim();
	var pattern = /^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
	flag = pattern.test(email);
	if(!flag){
		return "‧您輸入的E-mail不正確，請再次確認！ \n";
	}else{
		return "";
	}
}
// -->