/*
 * Clear Default Text: functions for clearing and replacing default text in
 * <input> elements.
 
 *
 * by Ross Shannon, http://www.yourhtmlsource.com/
 */

addEvent(window, 'load', init, false);

function addEvent(element, eventType, lamdaFunction, useCapture) {
	if (element.addEventListener) {
       	element.addEventListener(eventType, lamdaFunction, useCapture);
        return true;
	} else if (element.attachEvent) {
        var r = element.attachEvent('on' + eventType, lamdaFunction);
        return r;
	} else {
        return false;
	}
}

function init() {
    window.focus();
    var formInputs = document.getElementsByTagName('input');

    for (var i = 0; i < formInputs.length; i++) {
        var theInput = formInputs[i];

        if (theInput.type == 'text' && theInput.className.match(/\bcleardefault\b/)) {
            /* Add event handlers */
            addEvent(theInput, 'focus', clearDefaultText, false);
            addEvent(theInput, 'blur', replaceDefaultText, false);

            /* Save the current value */
            if (theInput.value != '') {
                theInput.defaultText = theInput.value;
            }
        }
    }
}

function clearDefaultText(e) {
    var target = window.event ? window.event.srcElement : e ? e.target : null;
    if (!target) return;

    if (target.value == target.defaultText) {
        target.value = '';
    }
}

function replaceDefaultText(e) {
    var target = window.event ? window.event.srcElement : e ? e.target : null;
    if (!target) return;

    if (target.value == '' && target.defaultText) {
        target.value = target.defaultText;
    }   
}