function openYMap(strZipcode, strGetVars, nWidth, nHeight)
{
    var oWndYMap;
    
    oWndYMap = window.open("/popups/ymap.php?zipcode="+strZipcode+(strGetVars?"&"+strGetVars:""), "wndYMap", "width="+nWidth+",height="+nHeight+",resizable=yes,scrollbars=yes");
    oWndYMap.focus();
    
	return false;
}