function track_event(category, action) {
	try {
		pageTracker._trackEvent(category, action);
	}
	catch(err) {
	}
}
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function forEach(arr,fnc) {
	for(var i in arr) {
		fnc(arr[i]);
	}
}

function rate_controller_change(obj) {
	var initialPosition = obj.parentNode.id.replace(/option_/, '');
	forEach(
		getElementsByClass('option_input',document.getElementById('rateForm'),'input'),
		function(a) {
			a.checked=false;
			a.parentNode.childNodes[1].className='';
		}
	);
	obj.parentNode.childNodes[0].checked='checked';
	obj.parentNode.childNodes[1].className='active';
	document.getElementById('ratecalc_arrow').style.left=((initialPosition*68)+6)+'px';
}

window.onload=function() {
	document.getElementById('ratecalc_arrow').style.display='block';
	forEach(
		getElementsByClass('option_input',document.getElementById('rateForm'),'input'),
		function(a) {
			if( !a.checked ) return;
			rate_controller_change(a);
		}
	);
}