画像を使用して HTML の送信ボタンを置き換える方法の例

<input type = "image"&#39; name = "..." src = "url" width= “” height = “”  border = “”>

<input type = "image" name = "..." src = "..."inclick ="document.foormName.submit()">

<input type = "image" name ="..." src = "..." onclick = "document.formName.reset()">

<script>
function checkdate(){
//取得输入数据
userName = document.RedForm.userName.value
userEmail = document.RedForm.userEmail.value
//如果没有输入名字
if(userName== ""){alert("请输入名字");
document.RedForm.userName.focus();
return false;
}else{
//如果没有输入Email，或者Email地址错误（不含@）
if(userEmail == "")||(userEmail.indexOf("@")== 1)){alret("请输入Email地址");
document.RedForm.userEmail.focus();
return false;
}else return true;
}
}
</script>