//Change navi (SMT gallery)
//======================================================
var currentNaviNum = 0;

function changeNaviPrev(passedId)
{	currentNaviNum--;
	if (currentNaviNum < 0)
	{	currentNaviNum = document.getElementById(passedId).getElementsByTagName("li").length - 1;
	}
	reassignNaviLeft(currentNaviNum,passedId);
}
function changeNaviNext(passedId)
{	currentNaviNum++;
	if (currentNaviNum >= document.getElementById(passedId).getElementsByTagName("li").length)
	{	currentNaviNum = 0;
	}
	reassignNaviLeft(currentNaviNum,passedId);
}

function reassignNaviLeft(passedNum,passedId)
{	var leftOffset = passedNum * -100;
	for(i=0;i<document.getElementById(passedId).getElementsByTagName("li").length;i++)
	{	document.getElementById(passedId).getElementsByTagName("li")[i].style.left = leftOffset + "%";
	}
	document.getElementById(passedId+"-navi").getElementsByTagName("p")[0].innerHTML = (passedNum+1) + "/" + document.getElementById(passedId).getElementsByTagName("li").length;
}