Javascript not working in Chrome and IE

I have used a javascript function in my page but it not working in Chrome and IE but is working perfectly in firefox. I am giving the details below:
function ShowHide() {
            debugger;
            alert('');
            if (document.getElementById("<%=RdAllowYes.ClientID %>").checked == true) {
                document.getElementById("<%=pnlAllowed.ClientID %>").style.display = 'none';
                document.getElementById("<%=pnlBuilderLevi.ClientID %>").style.display = 'block';
                document.getElementById("<%=txtAssign ...