function ValidateWord(keyword) {

    var validKeyword = true;
    var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYS " 

    for (var i = 0; i < keyword.length; i++) {
        temp = "" + keyword.substring(i, i + 1);
        if (valid.indexOf(temp) == "-1") {
            validKeyword = false;
            break;
        }
    }

    return validKeyword;
}

function ValidateNumbers(input) {
	
	var validNumbers = true;
    var valid = "1234567890"

    for (var i = 0; i < input.length; i++) {
        temp = "" + input.substring(i, i + 1);
        if (valid.indexOf(temp) == "-1") {
            validNumbers = false;
            break;
        }
    }

    return validNumbers;
}

// Tutor Profile
function ValidateTProfile3(group) {

    if(Page_ClientValidate(group))
    {
        var tEndDate = document.getElementById("ctl00_MainWorkingArea_EndDateRadio");
        if (tEndDate.checked == true) 
        {
            Page_ClientValidate('TP3Date');
        }
        else
        {
            return true;
        }
    }
}

function ValidateAProfile()
{
    // Course
    var pst = document.getElementById("ctl00_MainWorkingArea_PeakStartTime");
    var pet = document.getElementById("ctl00_MainWorkingArea_PeakEndTime");
    var opst = document.getElementById("ctl00_MainWorkingArea_OPeakStartTime");
    var opet = document.getElementById("ctl00_MainWorkingArea_OPeakEndTime");
    
    if (pst.value == "00" && pet.value == "00" && opst.value == "00" && opet.value == "00") {
        alert("Please select your availability time.");
        pst.focus();
        return false;
    }
    
    return true;
}

function validateNumber(value) { 

    if (!value) { value = 0; }

    if ( (parseInt(value) != value) || (parseInt(value) < 0) ) {
        return false; 
    }

    return true;
}

function validateDecimalVaue(value) {
    
    reg = /^\-?([1-9]\d*|0)(\.\d?[1-9])?$/;
    if (!reg.test(value)) {
        return false;
    }
    
    if(value < 0) 
    { return false; }
    
    return reg.test(value);
}