function imgOn(imageObj, risco)
{
	if (!risco) imageObj.src = imageObj.src.replace(/Preto/,"Cinza");
	else imageObj.src = imageObj.src.replace(/Liso/,"Risco");
}
function imgOff(imageObj, risco)
{
	if (!risco) imageObj.src = imageObj.src.replace(/Cinza/,"Preto");
	else imageObj.src = imageObj.src.replace(/Risco/,"Liso");
}

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 showHide(obj) {
	var objeto = document.getElementById(obj);
	if (objeto.style.display=='none') objeto.style.display='block';
	else objeto.style.display='none';
	return false;
}