verificaForm = function()
	{
	campos = document.forms[0];
	erro = "";
	
	for(i=0; i<campos.elements.length; i++)
	{
		x = campos.elements[i];
		if(x.type == "text"){
			if(x.value == ""){
				erro +=  "Campo " + x.id + ": Em branco \r\n";
			}
		}
	}
	if(erro == ""){
		form1.submit();
	}else{
		alert(erro);
		return false;
	}
	return false;	
}

function TamFonte(num, id)
{
	document.getElementById(id).className = "ft"+num;
}

function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}