Javascript time validation

//TIME VALIDATION

function TimeValidation(sender, args) {

var date = ('<%= (System.DateTime.Now).ToString()%>');

var F1, F2, M1, M2;

var TimeIn = $('#<%= txtTimeIn1.ClientID %>').val();

var TimeOut = $('#<%= txtTimeOut1.ClientID %>').val();

if ((TimeIn == "") && (TimeOut == "")) {

return args.IsValid = true;

}

var Time1 = TimeIn.split(":");

var Time2 = TimeOut.split(":");

F1 = Time1[0];

M1 = Time1[1];

F2 = Time2[0];

M2 = Time2[1];

if (TimeIn != "") {

var Min1 = M1.split(" ");

if ((F1 > 12) || (Min1[0] >= 60)) {

$('#<%= CustomTime.ClientID %>').text("Please enter valid Time in");

return args.IsValid = false;

}

}

if (TimeOut != "") {

var Min2 = M2.split(" ");

if ((F2 > 12) || (Min2[0] >= 60)) {

$('#<%= CustomTime.ClientID %>').text("Please enter valid Time out");

return args.IsValid = false;

}

}

if (((TimeIn == "00:00 AM") || (TimeIn == "00:00 PM") || (TimeIn == "")) && (TimeOut != "")) {

$('#<%= CustomTime.ClientID %>').text("Please enter valid Time out");

return args.IsValid = false;

}

if (((TimeOut == "00:00 AM") || (TimeOut == "00:00 PM") || (TimeOut == "")) && (TimeIn != "")) {

$('#<%= CustomTime.ClientID %>').text("Please enter valid Time out");

return args.IsValid = false;

}

if ((TimeIn != "") && (TimeOut != "")) {

var splitdate = date.split(" ");

var jdt1 = Date.parse(splitdate[0] + ' ' + $('#<%= txtTimeIn1.ClientID %>').val());

var jdt2 = Date.parse(splitdate[0] + ' ' + $('#<%= txtTimeOut1.ClientID %>').val());

if (jdt1 >= jdt2) {

$('#<%= CustomTime.ClientID %>').text("Time out should be greater than Time in");

return args.IsValid = false;

}

}

else {

$('#<%= CustomTime.ClientID %>').text("");

return args.IsValid = true;

}

}

//TimeValidation1

function TimeValidation1(sender, args) {

var date = ('<%= (System.DateTime.Now).ToString()%>');

var F1, F2, M1, M2;

var TimeIn2 = $('#<%= txtTimeIn2.ClientID %>').val();

var TimeOut2 = $('#<%= txtTimeOut2.ClientID %>').val();

if ((TimeIn2 == "") && (TimeOut2 == "")) {

return args.IsValid = true;

}

var Time1 = TimeIn2.split(":");

var Time2 = TimeOut2.split(":");

F1 = Time1[0];

M1 = Time1[1];

F2 = Time2[0];

M2 = Time2[1];

if (TimeIn2 != "") {

var Min1 = M1.split(" ");

if ((F1 > 12) || (Min1[0] >= 60)) {

$('#<%= CustomTime1.ClientID %>').text("Please enter valid Time in");

return args.IsValid = false;

}

}

if (TimeOut2 != "") {

var Min2 = M2.split(" ");

if ((F2 > 12) || (Min2[0] >= 60)) {

$('#<%= CustomTime1.ClientID %>').text("Please enter valid Time out");

return args.IsValid = false;

}

}

if (((TimeIn2 == "00:00 AM") || (TimeIn2 == "00:00 PM") || (TimeIn2 == "")) && (TimeOut2 != "")) {

$('#<%= CustomTime1.ClientID %>').text("Please enter valid Time in");

return args.IsValid = false;

}

if (((TimeOut2 == "00:00 AM") || (TimeOut2 == "00:00 PM") || (TimeOut2 == "")) && (TimeIn2 != "")) {

$('#<%= CustomTime1.ClientID %>').text("Please enter valid Time out");

return args.IsValid = false;

}

if ((TimeIn2 != "") && (TimeOut2 != "")) {

var splitdate = date.split(" ");

var jdt1 = Date.parse(splitdate[0] + ' ' + $('#<%= txtTimeIn2.ClientID %>').val());

var jdt2 = Date.parse(splitdate[0] + ' ' + $('#<%= txtTimeOut2.ClientID %>').val());

if (jdt1 >= jdt2) {

$('#<%= CustomTime1.ClientID %>').text("Time out shoud be greater than Time in");

return args.IsValid = false;

}

}

else {

$('#<%= CustomTime1.ClientID %>').text("");

return args.IsValid = true;

}

}


<asp:TextBox ID="txtTimeIn2" TabIndex="5" Width="60px" CssClass="special_text_brown"

runat="server"> </asp:TextBox>

<cc1:MaskedEditExtender ID="mskEditExtTimeIn2" runat="server" MaskType="Time" UserTimeFormat="None"

TargetControlID="txtTimeIn2" Mask="99:99" MessageValidatorTip="true" OnFocusCssClass="MaskedEditFocus"

OnInvalidCssClass="MaskedEditError" InputDirection="LeftToRight" AutoComplete="true"

ErrorTooltipEnabled="True" AcceptAMPM="true">

</cc1:MaskedEditExtender>

<asp:CustomValidator ID="CustomTime1" runat="server" SetFocusOnError="true" ClientValidationFunction="TimeValidation1" Display="Dynamic" ></asp:CustomValidator>