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для: serjinio
(09.01.2009 в 17:45)
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<script type=text/javascript>
function CheckForm(object){
var error = false;
for(var i = 0, len = object.elements.length, n = 0; i < len; i++){
object.elements[i].value = object.elements[i].value.replace (/^\s+/g, '');
if(object.elements[i].value){
object.elements[i].style.background = '';
}else{
if(error == false)object.elements[i].focus();
error = true;
object.elements[i].style.background = '#FFFF00';
}
}
if(error){
alert('не заполнены все поля');
return false;
}
}
</script>
<form action="" method="post" name="name_form" onsubmit="return CheckForm(this);">
<input name="login" type="text"/>
<br/>
<input name="pass" type="text"/>
<br/>
<input name="submit_name" type="submit" value="отправить"/>
</form>
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или
<form action="" method="post" name="name_form" onsubmit="if(document.name_form.login.value.replace(/^\s+/g, '') == '' || document.name_form.pass.value.replace(/^\s+/g, '') == '') {alert('Не введён логин или пароль'); return false;}">
<input name="login" type="text"/>
<br/>
<input name="pass" type="text"/>
<br/>
<input name="submit_name" type="submit" value="отправить"/>
</form>
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