var offNames = ['head_07.gif', 'head_08.gif', 'head_09.gif'];
var onNames = ['lithuanian.jpg', 'english.jpg', 'russian.jpg'];
var onImages = [];
var offImages = [];
		  
		  		  
function mouseOn(id, cond) { 	
	document.images[id].src = onImages[cond].src;
}
		
function mouseOff(id, cond) {  	
    document.images[id].src = offImages[cond].src;
}
		  
for(var i in offNames) {
	offImages.push( new Image() );
	offImages[i].src = 'images/'+offNames[i];
}
		
for(var i in onNames) {
	onImages.push( new Image() );
	onImages[i].src = 'images/'+onNames[i];
}