function lgp(p)
{

    var retLoc;

var browserName = navigator.userAgent.toLowerCase();
var browserVer = parseInt(navigator.appVersion); 
var ie4 = (browserName.indexOf("msie") > -1 && browserVer>=4);
    if (ie4)
    {
        retLoc = window.showModalDialog(p,'','dialogHeight: 640px; dialogWidth: 720px; center: Yes; help: No; resizable: Yes; status: Yes;scroll:Yes;');
    }
    else
    {
        window.open(p + '&f=f', null, 'width=750,height=600,scrollbars=yes,resizable=yes,status=yes');
    }
    return false;
}