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_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_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 validaForm() 
{  
    var p1 = (document.getElementById("p1a").checked == true || document.getElementById("p1b").checked == true || document.getElementById("p1c").checked == true);
    if (!p1) {
        alert("Esqueceu-se de responder à pergunta 1");
        return false;
    }
    
    var p2 = (document.getElementById("p2a").checked == true || document.getElementById("p2b").checked == true || document.getElementById("p2c").checked == true);    
    if (!p2) {
        alert("Esqueceu-se de responder à pergunta 2");
        return false;
    }
    
    var p3 = (document.getElementById("p3a").checked == true || document.getElementById("p3b").checked == true);    
    if (!p3) {
        alert("Esqueceu-se de responder à pergunta 3");
        return false;
    }
    
    var p4_1=(document.getElementById("p41a").checked == true || document.getElementById("p41b").checked == true || document.getElementById("p41c").checked == true);    
    if (!p4_1) {
        alert("Esqueceu-se de responder à pergunta 4.1");
        return false;
    }
    
    var p4_2=(document.getElementById("p42a").checked == true || document.getElementById("p42b").checked == true || document.getElementById("p42c").checked == true);    
    if (!p4_2) {
        alert("Esqueceu-se de responder à pergunta 4.2");
        return false;
    }
    
    var p6 = (document.getElementById("p6a").checked == true || document.getElementById("p6b").checked == true || document.getElementById("p6c").checked == true);    
    if (!p6) {
        alert("Esqueceu-se de responder à pergunta 6");
        return false;
    }    

    var p7 = (document.getElementById("p7a").checked == true || document.getElementById("p7b").checked == true || document.getElementById("p7c").checked == true);    
    if (!p7) {
        alert("Esqueceu-se de responder à pergunta 7");
        return false;
    }
    
    var p8 = (document.getElementById("p8a").checked == true || document.getElementById("p8b").checked == true || document.getElementById("p8c").checked == true);    
    if (!p8) {
        alert("Esqueceu-se de responder à pergunta 8");
        return false;
    }  
    
    var p9 = (document.getElementById("p9a").checked == true || document.getElementById("p9b").checked == true || document.getElementById("p9c").checked == true);    
    if (!p9) {
        alert("Esqueceu-se de responder à pergunta 9");
        return false;
    }      

}