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JavaScript Email Validation Using -Regular Expression

Posted By:BangaruBabuPureti       Posted Date: June 30, 2010    Points: 10    Category: Javascript    URL: http://www.dotnetspark.com  

Java script validation for validating email address using Regular expression

if(document.getElementById("<%=txtEmailid.ClientID %>").value=="")
                    alert("Please Enter Email-Id");
                    document.getElementById("<%=txtEmailid.ClientID %>").focus();
                    return false;
                 var emailPat = /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;
                 var emailid=document.getElementById("<%=txtEmailid.ClientID %>").value;
                 var matchArray = emailid.match(emailPat);
                 if (matchArray == null)
                    alert("Please Enter valid Email-Id.");
                    document.getElementById("<%=txtEmailid.ClientID %>").focus();
                    return false;


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