Check E-Mail - JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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Inserting Javascript

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Check E-Mail		[View Example]

Use Javascript to ensure that e-mail addresses provided in a form submission contain a prefix, the '@' sign, and an appropriate suffix (.com, .net, etc.).


Insert into <HEAD>
<SCRIPT LANGUAGE="JavaScript"> <!-- Begin function emailCheck() { txt=document.isn.email.value; if (txt.indexOf("@")<3){ alert("I'm sorry. This email address seems wrong. Please" +" check the prefix and '@' sign."); return false; } if ((txt.indexOf(".com")<5)&&(txt.indexOf(".org")<5) &&(txt.indexOf(".gov")<5)&&(txt.indexOf(".net")<5) &&(txt.indexOf(".mil")<5)&&(txt.indexOf(".edu")<5)){ alert("I'm sorry. This email address seems wrong. Please" +" check the suffix for accuracy. (It should include a " +".com, .edu, .net, .org, .gov or .mil)"); return false; } alert("Verification successful! Your form would not have been submitted."); return false; } // End --> </SCRIPT>

Insert into <BODY>
<FORM NAME="isn" ACTION="http://www.yoursite.com/cgi-bin/script.cgi" onSubmit="return emailCheck()"> <DIV ALIGN=CENTER><INPUT TYPE="text" NAME="email" SIZE=40 VALUE=""><BR> <INPUT TYPE="submit" NAME="email1" VALUE=" Submit "> </DIV> </FORM>

Other Options