function Clear1() {
    if (document.getElementById("ctl00_txtfname").value == "First Name") {
        document.getElementById("ctl00_txtfname").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtfname").value == "") {
            document.getElementById("ctl00_txtfname").value = "First Name";
        }
    }

}
function Clear2() {
    if (document.getElementById("ctl00_txtlname").value == "Last Name") {
        document.getElementById("ctl00_txtlname").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtlname").value == "") {
            document.getElementById("ctl00_txtlname").value = "Last Name";
        }
    }
}
function Clear3() {
    if (document.getElementById("ctl00_txtadd").value == "Address") {
        document.getElementById("ctl00_txtadd").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtadd").value == "") {
            document.getElementById("ctl00_txtadd").value = "Address";
        }
    }
}
function Clear4() {
    if (document.getElementById("ctl00_txtphone").value == "Contact No") {
        document.getElementById("ctl00_txtphone").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtphone").value == "") {
            document.getElementById("ctl00_txtphone").value = "Contact No";
        }
    }
}
function Clear5() {
    if (document.getElementById("ctl00_txtemail").value == "E-mail") {
        document.getElementById("ctl00_txtemail").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtemail").value == "") {
            document.getElementById("ctl00_txtemail").value = "E-mail";
        }
    }
}
function Clear6() {
    if (document.getElementById("ctl00_txtcomments").value == "Comments") {
        document.getElementById("ctl00_txtcomments").value = "";
    }
    else {
        if (document.getElementById("ctl00_txtcomments").value == "") {
            document.getElementById("ctl00_txtcomments").value = "Comments";
        }
    }
}

function checkvalidation(txtEmail, txtfname) {
    if (txtfname.value == "First Name") {
        alert('Please enter first name');
        txtfname.value = "First Name"
        txtfname.focus();
        return false;
    }   
    
    if (emptyField(txtEmail)) {
        alert('Please enter email (username)');
        txtEmail.focus();
        return false;
    }
    if (!validEmailId(txtEmail.value)) {
        alert('Please enter valid email');
        txtEmail.focus();
        return false;
    }
}

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