function $(id){
	var x = document.getElementById(id);
	return x;
}
function expand(sel,desc){
var sel = document.getElementById(sel);
sel.style.marginTop = '4px';
sel.style.paddingTop = '18px';
$(desc).style.visibility = 'visible';
}
function contract(sel,desc){
var sel = document.getElementById(sel);
sel.style.marginTop = '12px';
sel.style.paddingTop = '10px';
$(desc).style.visibility = 'hidden';
}
function opacit(ima){
var im = document.getElementById(ima);
im.style.opacity = 1.0;
	im.style.filter = 'alpha(opacity=100)';
}
function desopacit(ima){
var im = document.getElementById(ima);
im.style.opacity = 0.8;
im.style.filter = 'alpha(opacity=80)';
}

//gerador de popups
function popup(page,pid,width,height){

window.open(page,pid,'status=no,resizable=yes,scrollbars=no,menubar=no,width='+width+',height='+height) ;

}