function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages( label, img ) {
	if ( document.images && preloadFlag == true )
		document[label].src = img;
}

//function changeImages() {
//	if (document.images && (preloadFlag == true)) {
//		for (var i=0; i<changeImages.arguments.length; i+=2) {
//			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
//		}
//	}
//}
function changeDivImages(label, img) {
	var nob = document.getElementById(label);
	if ( nob ) {
        var url = 'url("' + img + '")';
        nob.style.backgroundImage = url;
    }
}

var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		HomePage_over     = newImage("${baseref}/images/HomePage-over.jpg");
		Comment_over      = newImage("${baseref}/images/Comment-over.jpg");
		SearchSite_over   = newImage("${baseref}/images/SearchSite-over.jpg");
		SimilarPages_over = newImage("${baseref}/images/SimilarPages-over.jpg");
		preloadFlag = true;
	}
}

function clearAndSet(label) {
	var field = document.getElementById( label );
	field.value = "";
	field.focus();
}