function open_twp_comparison(id){
    var popurl="twp_comparison.php?line=" + id;
    winpops=window.open(popurl,"","width=485,height=328,scrollbars=0,resizable=0,location=0");
}
function locatorInput(){  //handles product locator search box
    defaultVaule = "Enter Zip";
    if (document.product_locator.place.value.length == 0){
        document.product_locator.place.value = defaultVaule; //did the user enter then leave the box blank
    } else if (document.product_locator.place.value == defaultVaule){
        document.product_locator.place.value = ''; //blank out the box when it gains focus
    }
}