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موضوع
اسكريپت تصديق و تاييد
اين كد كاربران را به درست بودن قالبي كه وارد كردند اطمينان مي دهد
مثلا در مورد Zip code عدد وارد شده بايد پنج رقمي باشد .
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<!-- TWO STEPS TO INSTALL ZIP CODE
VALIDATION:
1. Copy the coding into the HEAD of your HTML document
2. Add the last code into the BODY of your HTML document -->
<!-- STEP ONE: Paste this code into the HEAD of your HTML document
-->
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
<!-- Original: Brian Swalwell -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://www.ostadonline.com -->
<!-- Begin
function validateZIP(field) {
var valid = "0123456789-";
var hyphencount = 0;
if (field.length!=5 && field.length!=10) {
alert("Please enter your 5 digit or 5 digit+4 zip code.");
return false;
}
for (var i=0; i < field.length; i++) {
temp = "" + field.substring(i, i+1);
if (temp == "-") hyphencount++;
if (valid.indexOf(temp) == "-1") {
alert("Invalid characters in your zip code. Please try again.");
return false;
}
if ((hyphencount > 1) || ((field.length==10) &&
""+field.charAt(5)!="-")) {
alert("The hyphen character should be used with a properly formatted
5 digit+four zip code, like '12345-6789'. Please try again.");
return false;
}
}
return true;
}
// End -->
</script>
</HEAD>
<!-- STEP TWO: Copy this code into the BODY of your HTML document
-->
<BODY>
<center>
<form name=zip onSubmit="return validateZIP(this.zip.value)">
Zip: <input type=text size=30 name=zip>
<input type=submit value="Submit">
</form>
</center>
<p><center>
<font face="arial, helvetica" size="-2">Free JavaScripts provided by
ostadonline<br>
</center><p>
<!-- Script Size: 1.39 KB -->
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