function changeImg(imgId,newSrc){
		document.getElementById(imgId).src = newSrc;
}

function changeStyle(imgId,newStyle){
		document.getElementById(imgId).style.display = newStyle;
}

function changeTxtColor(imgId,newColor){
		document.getElementById(imgId).style.color = newColor;
}

function changeBg(Id,newStyle){
		document.getElementById(Id).style.backgroundColor = newStyle;
}

function changeBgImage(Id,newBg){
		document.getElementById(Id).style.backgroundImage = newBg;
}

function clickclear(thisfield, defaulttext) {
if (thisfield.value == defaulttext) {
thisfield.value = "";
}
}
function clickrecall(thisfield, defaulttext) {
if (thisfield.value == "") {
thisfield.value = defaulttext;
}
}

// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;