//Check the object value is null if null return false else return true

function f_IsNullOrBlank(objID) 
{
    var currObj = document.getElementById(objID);
    if (txtObject != null) {
        var value = txtObject.value;
        if (value == "") {
            return false;
        }
    }
    else {
        return false;
    }
    return true;
}
function f_IsNullForObject(txtObject, message) 
{
    if (txtObject != null) 
    {
        var value = txtObject.value;
        if (value == "") 
        {
            alert(message);
            return false;
        }
    }
    else 
    {
        return false;
    }
    return true;
}
//Check textBox value is blank
function f_IsNullForTextBox(objID, message) 
{
    var currObj = document.getElementById(objID);
    var result = f_IsNullForObject(currObj, message);
    if (!result) 
    {
        currObj.focus();
        currObj.select();
        return false;
    }
    return true;
}
//Check the Number is Integer
function f_IsInteger(currValue, message) 
{
    var reg = /^[1-9]{1}[\d]*$/
    var result = reg.test(currValue);
    if (isNaN(message) && !result) 
    {
        alert(message);
        return false;
    }
    return result;
}
function f_IsIntForObject(txtObject, message) 
{
    if (txtObject != null) 
    {
        return f_IsInteger(txtObject.value, message);
    }
    else 
    {
        return false;
    }
    return true;
}
function f_IsIntForTextBox(objID, message) 
{
    var currObj = document.getElementById(objID);
    if (!f_IsIntForObject(currObj, message)) 
    {
        currObj.focus();
        currObj.select();
        return false;
    }
    return true;
}
//Check the Number Is float
function f_IsFloat(currValue, Message) 
{
    var reg = /^[0-9]+(\.[0-9]+){0,1}$/
    var result = reg.test(currValue);
    if (isNaN(Message) && !result) 
    {
        alert(Message);
        return false;
    }
    return result;
}
function f_IsFloatForObject(txtObject, message) 
{
    if (txtObject != null) 
    {
        return f_IsFloat(txtObject.value, message);
    }
    else 
    {
        return false;
    }
    return true;
}
function f_IsFloatForTextBox(objID, message) 
{
    var currObj = document.getElementById(objID);
    if (!f_IsFloatForObject(currObj, message)) 
    {
        currObj.focus();
        currObj.select();
        return false;
    }
    return true;
}
//Check DropDownList Is select
function f_IsSelectForDDL(ddlObject, message, defalueValue)
 {
    var strValue = "-1";
    if (defalueValue != undefined) 
    {
        strValue = defalueValue;
    }
    var selectIndex = ddlObject.selectedIndex;
    var value = ddlObject.options[selectIndex].value;
    if (value == strValue) 
    {
        ddlObject.focus();
        if (message != '') 
        {
            alert(message);
        }
        return false;
    }
    return true;
}
function f_IsSelect(ddlObject, defalueValue) 
{
    var strValue = "-1";
    if (defalueValue != undefined) 
    {
        strValue = defalueValue;
    }
    var selectIndex = ddlObject.selectedIndex;
    var value = ddlObject.options[selectIndex].value;
    if (value == strValue) 
    {
        return false;
    }
 return true;
}
function f_IsSelectForID(ddlObject, defalueValue) 
{
    var obj = document.getElementById(ddlObject);
    if (obj != null) 
    {
        return (f_IsSelect(obj, defalueValue));
    }
    else 
    {
        return false;
    }
    return true;
}
function f_IsSelectForDDLID(objID, message, defalueValue) 
{
    var obj = document.getElementById(objID);
    if (obj != null) 
    {
        return (f_IsSelectForDDL(obj, message, defalueValue));
    }
    else 
    {
        return false;
    }
    return true;
}
//Check GridView DrowDownList is select Value
function f_IsSelectForGridViewDDL(currGridView, textBoxList, MessageList, defaultValue) 
{
    if (currGridView == null) 
    {
        return false;
    }
    var oInputs = currGridView.getElementsByTagName("select");
    if (textBoxList.length == MessageList.length) 
    {
        var Result = true;
        for (var i = 0; i < oInputs.length; i++) 
        {
            var currSelect = oInputs[i];
            for (var j = 0; j < textBoxList.length; j++) 
            {
                if (Result) 
                {
                    if (currSelect.id.indexOf("_" + textBoxList[j]) > -1) 
                    {
                        Result = f_IsSelectForDDL(currSelect, MessageList[j], defaultValue);
                    }
                }
            }
            if (!Result) 
            {
                return Result;
            }
        }
    }
    else 
    {
        return false;
    }
    return true;
}
function f_IsSelectForGridViewDDLByID(gridID, textBoxList, MessageList, defaultValue) 
{
    var currGridView = document.getElementById(gridID);
    return f_IsSelectForGridViewDDL(currGridView, textBoxList, MessageList, defaultValue);
}
//Email Validation 
function f_IsEmailValidate(currValue) 
{
    var re = /^([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;
    return re.test(currValue);
}
function f_IsEmailValidatebyID(objID, Message) 
{
    var result = false;
    var currObj = document.getElementById(objID);
    if (currObj != null) 
    {
        var objValue = currObj.value;
        result = f_IsEmailValidate(objValue);
        if (!result && (Message != undefined || Message != "")) 
        {
            currObj.focus();
            currObj.select();
            alert(Message);
        }
        return result;
    }
    return result;
}

//Is American Phone
function f_IsUSPhone(currValue) 
{
    var re = /^((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}/;
    return re.test(currValue);
}
function f_IsUSPhonebyID(objID, Message) 
{
    var result = false;
    var currObj = document.getElementById(objID);
    if (currObj != null) 
    {
        var objValue = currObj.value;
        result = f_IsUSPhone(objValue);
        if (!result && (Message != undefined || Message != "")) 
        {
            currObj.focus();
            currObj.select();
            alert(Message);
        }
        return result;
    }
    return result;
}
//Zip Code Validation
function f_IsUSZipCode(currValue) 
{
    var re = /^\d{5}(-\d{4})?/;
    return re.test(currValue);
}
function f_IsUSZipCodebyID(objID, Message) 
{
    var result = false;
    var currObj = document.getElementById(objID);
    if (currObj != null) 
    {
        var objValue = currObj.value;
        result = f_IsUSZipCode(objValue);
        if (!result && (Message != undefined || Message != "")) 
        {
            currObj.focus();
            currObj.select();
            alert(Message);
        }
        return result;
    }
    return result;
}