// JavaScript Document
function showsubtitle(no)
{
	txt = "txt"+no;
	document.getElementById(txt).style.position = "";
	document.getElementById(txt).style.visibility = "visible";
	for(i=1;i<=no-1;i++)
	{
		if(document.getElementById("txt"+i).style.visibility != "hidden")
		{
			document.getElementById("txt"+i).style.position = "absolute";
			document.getElementById("txt"+i).style.visibility = "hidden";
		}
	}
	for(i=no+1;i<=9;i++)
	{
		if(document.getElementById("txt"+i).style.visibility != "hidden")
		{
			document.getElementById("txt"+i).style.position = "absolute";
			document.getElementById("txt"+i).style.visibility = "hidden";
		}
	}
	showpic(no);
}

function showpic(st)
{
	document.getElementById("content_right").style.background = "#333333 url('images/water-heater-"+st+".jpg') no-repeat center center";
}