window.addEvent('domready', function(){
/***************************************
/  Unit toggler
/**************************************/
	if ($('imperial')){
		$('metric').setStyle('display', 'none');
		$('metric_graph').setStyle('display', 'none');
		
		$('imperial_toggler').addEvent('click', function(){
			$('imperial').setStyle('display', 'block');
			$('metric').setStyle('display', 'none');
			$('imperial_graph').setStyle('display', 'block');
			$('metric_graph').setStyle('display', 'none');
		});
		
		$('metric_toggler').addEvent('click', function(){
			$('metric').setStyle('display', 'block');
			$('imperial').setStyle('display', 'none');
			$('metric_graph').setStyle('display', 'block');
			$('imperial_graph').setStyle('display', 'none');
		});
	}
	
/***************************************
/  Savings table height fix
/**************************************/
	if ($$('table.first')){

		var heights = new Array();
		var counter = 0;

		$$('table.first tr').each(function(tr){
			//console.log(tr.getStyle('height'));
			heights[counter] = tr.getStyle('height');
			counter++;
		});
		
		var counter = 0;
		
		$$('table.second tr').each(function(tr){
			tr.setStyle('height', heights[counter]);
			counter++;
		});
	
	}
});

window.addEvent('load', function(){
/***************************************
/  PNG transparency fix for IE 6
/**************************************/
	if ((window.ie6) && (document.body.filters)) 
	{
		$$('img').each(function(img){
			var imgName = img.src.toUpperCase()
			if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
			{
				var imgID = (img.id) ? "id='" + img.id + "' " : ""
				var imgClass = (img.className) ? "class='" + img.className + "' " : ""
				var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
				var imgStyle = "display:inline-block;" + img.style.cssText 
				if (img.align == "left") imgStyle = "float:left;" + imgStyle
				if (img.align == "right") imgStyle = "float:right;" + imgStyle
				if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
				var strNewHTML = "<span " + imgID + imgClass + imgTitle
				+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
				+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
				+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
				img.outerHTML = strNewHTML
			}
		});
	}
});