function hovermenu(ob){
	ob.style.backgroundImage='url(images/btn_menu.gif)';
	ob.style.backgroundRepeat='repeat-x';
	ob.style.cursor='pointer';
}
function unhovermenu(ob){
	ob.style.backgroundImage='';
	ob.style.backgroundRepeat='';
}
function hoverArrowL(ob){
	ob.style.backgroundImage='url(images/lesarts_artist_arrow_over.gif)';
	ob.style.cursor='pointer';
}
function unhoverArrowL(ob){
	ob.style.backgroundImage='url(images/lesarts_artist_arrow_over.gif)';
}
function hoverArrowR(ob){
	ob.style.backgroundImage='url(images/lesarts_artist_arrow2_over.gif)';
	ob.style.cursor='pointer';
}
function unhoverArrowR(ob){
	ob.style.backgroundImage='url(images/lesarts_artist_arrow2.gif)';
}
function reset(form){
	document.getElementById(form).reset();
}

function send(form){
	var mensaje="";
	if (document.getElementById('name_').value==''){
		mensaje+= "\nName is empty";
	}
	if (document.getElementById('email_').value==''){
		mensaje+= "\nEmail is empty";
	}
	if (document.getElementById('phone_').value==''){
		mensaje+= "\nPhone is empty";
	}
	if (document.getElementById('piece_').value==''){
		mensaje+= "\nPiece is empty";
	} 
	if (document.getElementById('artist_').value==''){
		mensaje+= "\nArtist is empty";
	} 

	//$else=['else_']; 
	//$hear=['hear_'];
	if (mensaje!=''){
		alert(mensaje);
	}else{ 
		document.getElementById(form).submit();
	}	
	
}