function LimparCampos(id, txtPadrao){
	
	var valor = document.getElementById(id).value;
	
	if (valor == txtPadrao){
		document.getElementById(id).value = "";
	}
}

function PreencheCampos(id, txtPadrao){
	
	var valor = document.getElementById(id).value;
	
	if (valor == ""){
		document.getElementById(id).value = txtPadrao;
	}
}

function RefreshImage(valImageId, pagina) {
	var objImage = document.images[valImageId];
	if (objImage == undefined) {
		return;
	}
	var now = new Date();
	objImage.src = objImage.src.split('?')[0] + '?x=' + now.toUTCString() + "&pag="+pagina+"";
}