Word Filter II
Sep 29, 2002
Filter out words from multiple fields:
<html>
<head>
<title>Word Filter</title>
<!--BEGIN WORD FILTER JAVASCRIPT-->
<script language="JavaScript">
// Word Filter 2.0
// By Premshree Pillai
// http://www.qiksearch.com
var swear_words_arr=new Array("bloody","war","terror");
var swear_alert_arr=new Array();
var swear_alert_count=0;
function reset_alert_count()
{
swear_alert_count=0;
}
function wordFilter(form,fields)
{
reset_alert_count();
var compare_text;
var fieldErrArr=new Array();
var fieldErrIndex=0;
for(var i=0; i<fields.length; i++)
{
eval('compare_text=document.' + form + '.' + fields[i] + '.value;');
for(var j=0; j<swear_words_arr.length; j++)
{
for(var k=0; k<(compare_text.length); k++)
{
if(swear_words_arr[j]==compare_text.substring(k,(k+swear_words_arr[j].length)).toLowerCase())
{
swear_alert_arr[swear_alert_count]=compare_text.substring(k,(k+swear_words_arr[j].length));
swear_alert_count++;
fieldErrArr[fieldErrIndex]=i;
fieldErrIndex++;
}
}
}
}
var alert_text="";
for(var k=1; k<=swear_alert_count; k++)
{
alert_text+="
" + "(" + k + ") " + swear_alert_arr[k-1];
eval('compare_text=document.' + form + '.' + fields[fieldErrArr[0]] + '.select();');
}
if(swear_alert_count>0)
{
alert("The form cannot be submitted.
The following illegal words were found:
_______________________________
" + alert_text + "
_______________________________");
return false;
}
else
{
return true;
}
}
</script>
<!--END WORD FILTER JAVASCRIPT-->
</head>
<body bgcolor="#FFFFFF">
<!--BEGIN FORM-->
<font face="verdana,arial,helvetica" size="-1">
<form name="form1" method="get" action="" onSubmit="return wordFilter('form1',['name','email','subject','message']);">
<table>
<tr><td>Name :</td><td><input type="text" name="name"></td></tr>
<tr><td>E-mail :</td><td><input type="text" name="email"></td></tr>
<tr><td>Subject :</td><td><input type="text" name="subject"></td></tr>
<tr><td>Message</td><td><textarea name="message" rows="5" cols="30"></textarea></td></tr>
</table>
<input type="submit" value="Submit Form">
</font>
</form>
<!--END FORM-->
</body>
</html>
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Aug 9, 2002
This JavaScript is a "Word Filter". It is a type of form validator. When the user submits some text, the validator will check the text for words that has to be filtered.
The words that have to be filtered must be added to the array swear_words_arr. When the user types the text and hits the submit button, if the text contains any word that is present in the array swear_words_arr, the form will not be submitted.
The script can be used for validation of swear words etc.
<html>
<head>
<title>Word Filter</title>
<!--BEGIN WORD FILTER JAVASCRIPT-->
<script language="JavaScript1.2">
// Word Filter
// (c) 2002 Premshree Pillai
// http://www.qiksearch.com
// http://javascript.qik.cjb.net
var swear_words_arr=new Array("bloody","war","terror");
var swear_alert_arr=new Array;
var swear_alert_count=0;
function reset_alert_count()
{
swear_alert_count=0;
}
function validate_user_text()
{
reset_alert_count();
var compare_text=document.form1.user_text.value;
for(var i=0; i<swear_words_arr.length; i++)
{
for(var j=0; j<(compare_text.length); j++)
{
if(swear_words_arr[i]==compare_text.substring(j,(j+swear_words_arr[i].length)).toLowerCase())
{
swear_alert_arr[swear_alert_count]=compare_text.substring(j,(j+swear_words_arr[i].length));
swear_alert_count++;
}
}
}
var alert_text="";
for(var k=1; k<=swear_alert_count; k++)
{
alert_text+="
" + "(" + k + ") " + swear_alert_arr[k-1];
}
if(swear_alert_count>0)
{
alert("The form cannot be submitted.
The following illegal words were found:
_______________________________
" + alert_text + "
_______________________________");
document.form1.user_text.select();
}
else
{
document.form1.submit();
}
}
function select_area()
{
document.form1.user_text.select();
}
window.onload=reset_alert_count;
</script>
<!--BEGIN WORD FILTER JAVASCRIPT-->
</head>
<body bgcolor="#FFFFFF">
<!--BEGIN FORM-->
<table cellpadding="10" style="border:2 solid #FF9900" width="200" align="center"><tr><td>
<form name="form1" method="post" action="post.cgi">
<center><font face="Times New Roman" size="6pt" color="#606060"><b><i>Word Filter</i></b></font></center>
<table><tr><td></td></tr></table>
<textarea rows="3" cols="40" name="user_text" style="border:2 solid #808080; font-family:verdana,arial,helvetica; font-weight:normal; font-size:10pt" onclick="select_area()">Enter your text here...</textarea>
<table><tr><td></td></tr></table>
<center><input type="button" style="background:#EFEFEF; border:2 solid #808080; width:100%; cursor:pointer" value="Submit" onclick="validate_user_text();"></center>
</form>
</td></tr></table>
<!--END FORM-->
</body>
</html>
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