var flagEmail = false;

function isNumberKey(evt) {
    var charCode = (evt.which) ? evt.which : event.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57 || charCode == 22)) {
        return false;
    }
    return true;
}
function mobilenumber() {
    if (Trim(document.getElementById("TextBox1").value) == "") {
        alert('Please enter a Mobile Number');
        document.getElementById("TextBox1").focus();
        return false;
    }
    else {
        if (isInteger(Trim(document.getElementById("TextBox1").value))) {
            if ((document.getElementById("TextBox1").value.toString().length) == 10) {
                return true;
            }
            else {
                alert('Please enter valid 10 digit mobile number');
                document.getElementById("TextBox1").focus();
                return false;
            }
            return true;
        }
        else {

            alert('Please enter a proper Mobile Number');

            document.getElementById("TextBox1").value = "";
            document.getElementById("TextBox1").focus();
            return false;
        }
    }
}

function isInteger(s) {
    var i;
    s = s.toString();
    for (i = 0; i < s.length; i++) {
        var c = s.charAt(i);
        if (isNaN(c)) {
            //alert("Entered Mobile Number is not a number");
            return false;
        }
    }
    return true;
}

function Trim(input) {
    var lre = /^\s*/;
    var rre = /\s*$/;
    input = input.replace(lre, "");
    input = input.replace(rre, "");
    return input;
}

function GetFocusTextBox() {
    if (document.getElementById("TextBox1").value == "Enter Your Mobile Number") {
        document.getElementById("TextBox1").value = "";
    }
}

function LostFocusTextBox() {
    if (document.getElementById("TextBox1").value == "") {
        document.getElementById("TextBox1").value = "Enter Your Mobile Number";
    }
}
function EmailID() {
    if (Trim(document.getElementById("TextBox1").value) == "") {
        alert('Please enter a Email-ID');
        document.getElementById("TextBox1").focus();
        return false;
    }
    else {

        if (CheckEmailID()) {
            return true;
        }
        else {
            alert('Please enter a proper Email-ID');
            document.getElementById("TextBox1").focus();
            return false;
        }
    }
}


function CheckEmailID() {
    var emailReg = "^[\\w-_\.+]*[\\w-_\.]\@([\\w]+\\.)+[\\w]+[\\w]$";
    var regex = new RegExp(emailReg);
    return regex.test(document.getElementById("TextBox1").value);
}


function GetFocusOfEmailTextBox() {
    if (document.getElementById("TextBox1").value == "Enter Your Email ID Here") {
        document.getElementById("TextBox1").value = "";
    }
}
function LostOfEmailTextBox() {
    if (document.getElementById("TextBox1").value == "") {
        document.getElementById("TextBox1").value = "Enter Your Email ID Here";
    }
}