var img1 = new Image();
img1.src = "/ACB/images/cold_air_button_bg_on.gif";
var img2 = new Image();
img2.src = "/ACB/images/cold_air_button_end_on.gif"

function hover( prefix )
{
	var tdElem
	var imgElem
	if(document.getElementById)  // DOM3 = IE5, NS6
	{
		tdElem  = document.getElementById(prefix)
		imgElem = document.getElementById(prefix + "_end")
	}
	else 
	{
		if (document.layers)// Netscape 4 
		{ 
			tdElem  = document.prefix
			imgElem = eval(document.prefix + "_end")
		}
		else  // IE 4
		{
			tdElem  = document.all.prefix
			imgElem = eval(document.all.prefix + "_end")
		}
	}
	tdElem.style.backgroundImage = "url(/ACB/images/cold_air_button_bg_on.gif)";
	imgElem.src = "/ACB/images/cold_air_button_end_on.gif"
	//document.body.style.cursor = 'hand'
	document.body.style.cursor = 'pointer'
}

function unhover( prefix )
{
	var tdElem
	var imgElem
	if(document.getElementById)  // DOM3 = IE5, NS6
	{
		tdElem  = document.getElementById(prefix)
		imgElem = document.getElementById(prefix + "_end")
	}
	else 
	{
		if (document.layers)// Netscape 4 
		{ 
			tdElem  = document.prefix
			imgElem = eval(document.prefix + "_end")
		}
		else  // IE 4
		{
			tdElem  = document.all.prefix
			imgElem = eval(document.all.prefix + "_end")
		}
	}
	tdElem.style.backgroundImage = "url(/ACB/images/cold_air_button_bg_off.gif)";
	imgElem.src = "/ACB/images/cold_air_button_end_off.gif"
	document.body.style.cursor = ''
}