//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Copyright GlobalWeb Ltd 2009 - Any use of this code for functions/websites other than the Irish News Memoriam Cards system is a violation of copyright
//Author: Peter Foran
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// utility script

// clear default value of input box
// params: (object to test)
function clearDefault(el) { if (el.defaultValue == el.value) el.value = "" }

// restore default value of input box
// params: (object to test)
function restoreDefault(el) { if (el.value == "") el.value = el.defaultValue; }

// toggles visibility of an element based on state
// params: (id of element, true/false state)
function toggleVis(id, state) {

    var obj = document.getElementById(id);

    if (obj) {
        if (obj.style) {
            if (state == true) { obj.style.display = 'block'; } else { obj.style.display = 'none'; }
        } else {
            if (state == true) { obj.display = 'block'; } else { obj.display = 'none'; }
        }
    }
}

// sets the value of a specified field (if it exists)
// params: (id of element, value)
function setFieldVal(id, val) {

    var obj = document.getElementById(id);

    if (obj) {
        obj.value = val;
    }
}