eqca = new Object();

eqca.getURLB = function()
{
	var r;
	if (r = window.location.href.match(/\/b\.([0-9]+)\//))
	{
		return r[1];
	}
	else if (r = window.location.href.match(/(\?|\&)b=([0-9]+)(\&|$)/))
	{
		return r[2];
	}
}

eqca.getURLC = function()
{
	var r;
	if (r = window.location.href.match(/\/c\.([0-9a-z]+)\//i))
	{
		return r[1];
	}
	else if (r = window.location.href.match(/(\?|\&)c=([0-9a-z]+)(\&|$)/i))
	{
		return r[2];
	}
}

eqca.printRColAboveNavImg = function(classNameSrc, classNameTgt, defaultSrc, w, h)
{
	var jq;
	if ((jq = jQuery("img."+classNameSrc)).length)
	{
		document.writeln('<img class="'+classNameTgt+'"src="'+jq.get(0).src+'" width="'+w+'" height="'+h+'" />');
	}
	else
	{
		document.writeln('<img class="'+classNameTgt+'"src="'+defaultSrc+'" width="'+w+'" height="'+h+'" />');
	}
}