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

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

function init() {
	var formInputs = document.getElementsByTagName('textarea');
	for (var i = 0; i < formInputs.length; i++) {
		var theInput = formInputs[i]
		
		if (theInput.type == 'textarea' && theInput.className.match(/\bcleardefault\b/)) {
			/* Add event handlers */		  
			addEvent(theInput, 'focus', clearDefaultTextarea, false);
			addEvent(theInput, 'blur', replaceDefaultTextarea, false);
			
			/* Save the current value */
			if (theInput.value != '') {
				theInput.defaultText = theInput.value;
			}
		}
	}
}

function clearDefaultTextarea(e) {
	var target = window.event ? window.event.srcElement : e ? e.target : null;
	if (!target) return;
	
	if (target.value == target.defaultText) {
		target.value = '';
	}
}

function replaceDefaultTextarea(e) {
	var target = window.event ? window.event.srcElement : e ? e.target : null;
	if (!target) return;
	
	if (target.value == '' && target.defaultText) {
		target.value = target.defaultText;
	}
}