function showHideWebsearchBackgroundImage() {

	var googleImage = document.getElementById('google-image');

	if (document.getElementById('search-web').checked) {
		googleImage.removeAttribute("class");		
	} else {
		googleImage.className = "hidden";
	}
}

function onWebsearchLoad() {

	document.getElementById('radios').onclick = showHideWebsearchBackgroundImage; 
}

addEvent(window, "load", onWebsearchLoad);