<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > |
<html xmlns= "http://www.w3.org/1999/xhtml" > |
<head> |
<title>js检测表单</title> |
<script language= "javascript" type= "text/javascript" > |
function checked() { |
if (myform.user.value == "" ) { |
alert( "请输入您的姓名!" ); |
return false ; |
} |
if (!(myform.sex[0].checked || myform.sex[1].checked)){ |
alert( "请选择性别!" ); |
return false ; |
} |
|
if (myform.age.value == "" ) |
{ |
alert( "请输入年龄!" ); |
return false ; |
} |
if (myform.age.value <= 10 || myform.age.value >= 50){ |
alert( "年龄应为10-50岁之间!" ); |
return false ; |
} |
} |
</script> |
</head> |
<body> |
<form name= "myform" method= "post" onsubmit= "return checked()" > |
姓名: |
<input name= "user" type= "text" value= "" size= "8" /> |
<br /> |
<br /> |
性别: |
<input name= "sex" type= "radio" value= "nan" /> |
男 |
<input name= "sex" |
type= "radio" value= "nv" /> |
女 <br /> |
<br /> |
年龄: |
<input name= "age" type= "text" size= "8" /> |
<br /> |
<br /> |
<input type= "submit" name= "mysubmit" value= "提交" /> |
</form> |
</body> |
</html> |