// Clear input boxes onclick and restore onblur

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

function init() {
    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;
    }
}

/* 
 * Cross-browser event handling, by Scott Andrew
 */
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 retrieveCookie( cookieName ) {
	/* retrieved in the format
	cookieName4=value; cookieName3=value; cookieName2=value; cookieName1=value
	only cookies for this domain and path will be retrieved */
	var cookieJar = document.cookie.split( "; " );
	for( var x = 0; x < cookieJar.length; x++ ) {
		var oneCookie = cookieJar[x].split( "=" );
		if( oneCookie[0] == escape( cookieName ) ) { return oneCookie[1] ? unescape( oneCookie[1] ) : ''; }
	}
	return null;
}

function setCookie( cookieName, cookieValue, lifeTime, path, domain, isSecure ) {
	if( !cookieName ) { return false; }
	if( lifeTime == "delete" ) { lifeTime = -10; } //this is in the past. Expires immediately.
	/* This next line sets the cookie but does not overwrite other cookies.
	syntax: cookieName=cookieValue[;expires=dataAsString[;path=pathAsString[;domain=domainAsString[;secure]]]]
	Because of the way that document.cookie behaves, writing this here is equivalent to writing
	document.cookie = whatIAmWritingNow + "; " + document.cookie; */
	document.cookie = escape( cookieName ) + "=" + escape( cookieValue ) +
		( lifeTime ? ";expires=" + ( new Date( ( new Date() ).getTime() + ( 1000 * lifeTime ) ) ).toGMTString() : "" ) +
		( path ? ";path=" + path : "") + ( domain ? ";domain=" + domain : "") + 
		( isSecure ? ";secure" : "");
	//check if the cookie has been set/deleted as required
	if( lifeTime < 0 ) { if( typeof( retrieveCookie( cookieName ) ) == "string" ) { return false; } return true; }
	if( typeof( retrieveCookie( cookieName ) ) == "string" ) { return true; } return false;
}