function AbrePopUp(pagina, largura, altura){
	var winl = (screen.width - largura) / 3;
	var wint = (screen.height - altura) / 3;
	
	window.open(pagina,"oPopUp","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+largura+",height="+altura+",top="+winl+",left="+wint+"");
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function campoRequerido(form, nomeCampo, alerta){
	var obj = document.getElementById(form).elements[nomeCampo];
	if (obj){
		switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].value == ""){
					alert(alerta);
					obj.focus();
					return false;
				}
			break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alert(alerta);
					obj.focus();
					return false;
				}
			break;
			
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value.substring(0,1) == " "){
					alert(alerta);
					obj.focus();
					return false;
				}
			break;
			default:
		}
		
		if (obj.type == undefined){
			var blnchecked = false;
			for (var j = 0; j < obj.length; j++){
				if (obj[j].checked){
					blnchecked = true;
				}
			}
			
			if (!blnchecked){
				alert(alerta);
				return false;
			}
		}
	}
	return true;
}


function enviaForm(Form, Campos, Mensagens)
{
	for (x=0; x < Campos.length; x++)
	{
		if (campoRequerido(Form, Campos[x], Mensagens[x]) == false)
		{
			return(0);
		}
	}
	document.getElementById(Form).submit();	
}