function preload(imageName) {
	var i = new Image;
	i.src = "images/"+imageName+"_hover.jpg";
	return i;
}
	if (document.images) var image1 = preload('mn1_sobrenos');
	if (document.images) var image2 = preload('mn2_grupo');
	if (document.images) var image3 = preload('mn3_areas');
	if (document.images) var image4 = preload('mn4_mercado');
	if (document.images) var image5 = preload('mn5_ferramentas');
	if (document.images) var image6 = preload('mn6_ambiente');
	if (document.images) var image7 = preload('mn7_noticias');

function aparece(menu, imagem) {
document.getElementById(menu).style.visibility = 'visible';
document.getElementById(imagem).src = "../imgs/" + imagem + "_hover.jpg";
}

function some(menu, imagem, atual) {
document.getElementById(menu).style.visibility = 'hidden';
if(atual > 0)
{
    document.getElementById(imagem).src = "../imgs/" + imagem + "_hover.jpg";
}
else
{
    document.getElementById(imagem).src = "../imgs/" + imagem + "_normal.jpg";
}
}



function apareceimg(imagem, nome) {
document.getElementById(imagem).src = "../imgs/" + nome + "_hover.jpg";
}

function someimg(imagem, nome, atual) {
if(atual > 0 )
{
    document.getElementById(imagem).src = "../imgs/" + nome + "_hover.jpg";
}
else
{
    document.getElementById(imagem).src = "../imgs/" + nome + "_normal.jpg";
}


}

function carregaFlash(caminho,largura,altura) {
   document.write('<object type="application/x-shockwave-flash" data="'+caminho+'" width="'+largura+'" height="'+altura+'">');
   document.write('<param name="movie" value="'+caminho+'">');
   document.write('<param name="quality" value="high">');
   document.write('<param name="bgcolor" value="#FFFFFF">');
   document.write('<param name="wmode" value="transparent">');
   document.write('<param name="menu" value="false">');
   document.write('</object>');
}
function isEmpty(campo){ 
           var   len = campo.length; 
           var pos; 
           var vStrnewtext = ""; 

           for (pos=0; pos<len; pos++){ 
              if (campo.substring(pos, (pos+1)) != " "){ 
                 vStrnewtext = vStrnewtext + campo.substring(pos, (pos+1)); 
              } 
           } 

           if (vStrnewtext.length > 0) 
              return false; 
           else 
              return true; 
        } 
        
        
        
function keyPressNumericValor(event, valor)
{
	var keynum = getKeyCode(event);
	var valorAux = new String();
	//alert(keynum);
	valorAux = valor;
	
	if(valorAux.indexOf(',', 0) > -1)
	{
		if(keynum == 8 || keynum == 9 || keynum == 13 ) return true;
		var keychar = String.fromCharCode(keynum);
		var numcheck = /\d/
		return numcheck.test(keychar)
	}
	else
	{
		if(keynum == 8 || keynum == 9 || keynum == 13 || keynum == 44) return true;
		var keychar = String.fromCharCode(keynum);
		var numcheck = /\d/
		return numcheck.test(keychar)
	}
}


function keyPressNumeric(event)
{
	var keynum = getKeyCode(event);
	//alert(keynum);
	if(keynum == 8 || keynum == 9 || keynum == 13) return true;
	var keychar = String.fromCharCode(keynum);
	var numcheck = /\d/
	return numcheck.test(keychar)
}

function keyPressFone(obj,event)
{
	var keynum = getKeyCode(event);
	if(keynum == "undefined") return true;
	if(keynum == 8 || keynum == 9 || keynum == 13) return true;
	var keychar = String.fromCharCode(keynum);
	if(keychar == "-") return(obj.value.indexOf("-") == -1 && obj.value.length <= 4 && obj.value.length > 1);
	var numcheck = /\d/
	return (numcheck.test(keychar) && ((obj.value.length < 8 && obj.value.indexOf("-") == -1) || (obj.value.length - obj.value.indexOf("-")) <= 4));
}
function getKeyCode(event){
	var keynum
	if(window.event) // IE
		keynum = event.keyCode
	else if(event.which) // Netscape/Firefox/Opera
		keynum = event.which
	return keynum;
}

function isEmpty(campo){ 
           var   len = campo.length; 
           var pos; 
           var vStrnewtext = ""; 

           for (pos=0; pos<len; pos++){ 
              if (campo.substring(pos, (pos+1)) != " "){ 
                 vStrnewtext = vStrnewtext + campo.substring(pos, (pos+1)); 
              } 
           } 

           if (vStrnewtext.length > 0) 
              return false; 
           else 
              return true; 
        }