function abre_janela(theURL, altura, largura) 
{
	propriedades = "\"menubar=no,toolbar=no,scrollbars=yes,resizable=yes,status=no,location=no,directories=no,copyhistory," + "height=" + altura + ",width=" + largura +"\"";
	
	var contactWindow=window.open
	(theURL, "NewWalkMode", propriedades);
	
	contactWindow.focus();
}

function abreJanela(pagina, nome, w, h, rolagem) 
{
    var winl = (window.screen.availWidth/2)-(w/2);
    
    var wint = (window.screen.availHeight/2)-(h/2)-12;
    
    var winProps = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+rolagem+',resizable=no';
    
    win = window.open(pagina, nome, winProps)
    
    win.window.focus();
}

function abre_janela_2(theURL, altura, largura) 
{
    propriedades = "\"menubar=no,toolbar=no,scrollbars=no,resizable=no,status=no,location=no,directories=no,copyhistory," + "height=" + altura + ",width=" + largura +"\"";
    
    var contactWindow = window.open
    
    (theURL, "NewWalkMode", propriedades);
    
    contactWindow.focus();
}