How to set Min/Max Date to Infragistics WebDateChooser Using Javascript

<igsch:WebDateChooser ID="RevisedDate" runat="server" Value="" Width="105px" Style="z-index: 100; left: 1px; position: relative; top: 0px" MaxDate="2099-12-31" MinDate="1900-01-01" TabIndex="4">
<ClientSideEvents BeforeDropDown="chkMinDate();" />
</igsch:WebDateChooser>

function chkMinDate()
{
var FRMinDate = "1/12/1983";
var today = new Date();
if(FRMinDate != "" && FRMinDate != null)
{
if(FRMinDate.indexOf('/') != -1)
{
var vals = FRMinDate.split('/');
var mn = vals[0];
var d = vals[1];
var yr = vals[2];
today.setFullYear(parseInt(yr),parseInt(mn-1),parseInt(d));
oRevisedDate.setMinDate(today); //for Setting Minimum date
//oRevisedDate.setMaxDate(today); //for Setting Minimum date
//oRevisedDate.setValue(today); //for Setting the date
//oRevisedDate is a Control Name
}
}
}