function validate() {      
       
        if ( document.forms("epaper").name.value == "" ||document.forms("epaper").name.value == "-請填寫姓名-") {      
                alert("請填寫姓名！");      
                document.forms("epaper").name.focus();      
        } else  if ( document.forms("epaper").sex.value == "" ) {      
                alert("請選擇「性別」！");      
                document.forms("epaper").sex.focus();      
        } else if ( document.forms("epaper").mail1.value == "" || ( document.forms("epaper").mail1.value.indexOf == -1 )) {      
                alert("請填寫電子郵件1！");      
                document.forms("epaper").mail1.focus(); 
        }else if ( document.forms("epaper").mail1.value == "-請填寫常用Mail-" ) {      
                alert("請填寫電子郵件1！");      
                document.forms("epaper").mail1.focus();     
        } else  if ( ( document.forms("epaper").mail1.value.indexOf('@',0) == -1 ||      
                document.forms("epaper").mail1.value.indexOf('.',0) == -1 )) {      
                alert("你所輸入的電子郵件1不合法！");      
                document.forms("epaper").mail1.focus();      
        } else if ( document.forms("epaper").age.value == "" ) {      
                alert("請選擇「年齡」！");    
                document.forms("epaper").age.focus();      
        } else  if ( document.forms("epaper").edu.value == "" ) {      
                alert("請選擇「教育程度」！");      
                document.forms("epaper").edu.focus();      
        } else  if ( document.forms("epaper").job.value == "" ) {      
                alert("請選擇「職業類別」！");      
                document.forms("epaper").job.focus();      
        } else  if ( document.forms("epaper").know.value == "" ) {      
                alert("請選擇「想了解之訊息」！");      
                document.forms("epaper").know.focus();      
        } else            
{      
                return true;      
        }      
        return false;      
       
}