function solucoes() {
		var x = 1000;
		var y = 655;
		
		var winl = (screen.width - x) / 2;
		var wint = (screen.height - y) / 2;
		window.open ('../solucoes/solucoes.php', 'Solucoes_Sanvitron', 'width=' + x + ', height=' + y + ', top=' + wint + ', left=' + winl + ', scrollbars=no');
	}


function over(id){
		document.getElementById(id).src 					= '../../img/menu/' + id + '_over.jpg';
		document.getElementById('div_'+id).style.display 	= '';
		document.getElementById('top').style.display 		= '';			
		document.getElementById('bottom').style.display 	= '';				
		document.getElementById('left').style.display 		= '';			
		document.getElementById('right').style.display 		= '';					
	}
function oculta_todos(){
	document.getElementById('div_empresa').style.display = 'none';
	document.getElementById('div_produtos').style.display = 'none';
	document.getElementById('div_parceiros').style.display = 'none';
	document.getElementById('div_sugestoes').style.display = 'none';
	document.getElementById('div_contato').style.display = 'none';
	
	document.getElementById('empresa').src 		= '../../img/menu/empresa.jpg';
	document.getElementById('produtos').src 	= '../../img/menu/produtos.jpg';
	document.getElementById('parceiros').src 	= '../../img/menu/parceiros.jpg';
	document.getElementById('sugestoes').src 	= '../../img/menu/sugestoes.jpg';
	document.getElementById('contato').src 		= '../../img/menu/contato.jpg';
	
	document.getElementById('top').style.display 	= 'none';			
	document.getElementById('bottom').style.display = 'none';		
	document.getElementById('left').style.display 	= 'none';			
	document.getElementById('right').style.display 	= 'none';						
					
}
function limpa_campo(id){
	if(id == "usuario"){
	if(document.getElementById(id).value == 'Usuario'){
		document.getElementById(id).value = '';
	}
	} else{
		document.getElementById(id).value = '';	
	}
}

function restaura_campo(id){
	if(document.getElementById(id).value == ''){
		document.getElementById(id).value = 'Usuario';
	}
}