// menuOver
function imageOver(obj) {
	obj.src = obj.src.replace("off.gif", "on.gif");
}
function imageOut(obj) {
	obj.src = obj.src.replace("on.gif", "off.gif");
}

function coorNetwork(){
	var net = document.getElementById('footerNetwork');
	var obj = net.getElementsByTagName('dd');
	for( i = 0; i <= obj.length-1; i ++ ) {
		if (obj[i].className=='on') obj[i].className='';
		else obj[i].className='on';
	}
}

// image on/off Change
function imgChg(obj) {		/* onClick½Ã image-change, [ex:	imgChg(this); ] */
	if(obj.src.indexOf("off.gif") != -1) obj.src = obj.src.replace("off.gif", "on.gif");
	else if(obj.src.indexOf("on.gif") != -1) obj.src = obj.src.replace("on.gif", "off.gif");
}

// Content Display Show & Hide -- FaQ
function contChange(obj,num,total) {
	for (i=1; i<=total; i++)	{
		if (i==num)	{
			document.getElementById(obj+i).className = 'open';
		}
		else {
			document.getElementById(obj+i).className = '';
		}
	}
}
// Content Display Show & Hide -- Common
function contView(obj,num,total) {
	for (i=1; i<=total; i++)	{
		if (i==num)	{
			document.getElementById(obj+i).style.display = '';
		}
		else {
			document.getElementById(obj+i).style.display = 'none';
		}
	}
}

//* Case Study -- Layer open & close *//
function contshow( icnt ) {
    document.getElementById("contentsMore").style.display = "block";
}
function conthide( icnt ) {
    document.getElementById("contentsMore").style.display = "none";
}