onclick="parent.location is not working in firefox and Chrome

<A ID ="CustomerInformation"></A>
<table class="SectionHeader1">
    <TBODY>
        <tr>
            <td>Customer Information</td>
        </tr>
    </TBODY>
</table>
<TABLE class="TheBox" align="center">       
    <TBODY>
        <TR>
            <TD>
            <FIELDSET><LEGEND>Customer Address</LEGEND>
            <DIV align="center">
            <TABLE id="table5" class="BoxedIn">
                <TBODY>
                    <TR>
                        <TH colspan="3" width="50%">Billing Address</TH>
                        <TH colspan="5" width="50%">Shipping Address</TH>
                    </TR>                       
                    </TR>
                </TBODY>
            </TABLE>
            </DIV>
            </FIELDSET>
            </TD>
        </TR>
    </TBODY>
</TABLE>    
<INPUT type="button" value="Customer Details"
                    class="buttonSuper" name="customerDetails"
                    onclick="parent.location='#CustomerInformation'"> 

The '#CustomerInformation' denotes the point where this script will jump to means same page.But it working fine in IE but not not working firefox and Chrome ..when click on onclcik button it is closing current page and go to main page.I tired like document.location and but no luck... Please help