obj="explic";
var DOM = document.getElementById;
function parte(){
  if (DOM){return "document.getElementById(obj).style";}
else if(document.layers){return "document." + obj ;}else{return obj + ".style";}
}
function vedesc(desc){
if(DOM){document.getElementById(obj).innerHTML = desc;}
else if(document.layers){
document.explic.document.write(desc);
document.explic.document.close();
}else{
explic.innerHTML = desc;}
}
function apagadesc(){
if(DOM){document.getElementById(obj).innerHTML = "";}
else if(document.layers){
document.explic.document.write("");
document.explic.document.close();
}else{
explic.innerHTML = "";}
}
function verificafr(x){
tam=x.length;
for(y=0;y<tam;y++){
if(x.elements[y].value==''){
alert('Favor preencher todos os campos do formulário');
x.elements[y].focus();
return false;
}
}
}