function popup(){
	window.open('http://atendimento.mdconline.com.br/chat.asp?idc=5317&pre_empresa=1127&pre_depto=1164&vivocustom=&vivocustom2=Home Site AlphaVille&vivocustom3=Ficha do Produto&vivocustom4=BotaoChat&idtemplate=5','popup','width=200,height=100,scrolling=auto,top=0,left=0')
}


function mostraOpcCombo(){
	if(document.getElementById("opcCombo").style.display=="block"){
		document.getElementById("opcCombo").style.display="none"
		document.getElementById("liLista").style.backgroundColor="#fff"
	}
	else{
		document.getElementById("opcCombo").style.display="block"
		document.getElementById("liLista").style.backgroundColor="#f0f0f0"
	}
}

function marcaCombo(valor){
	document.getElementById("opcCombo").style.display="none"
	document.getElementById("txCombo").value=valor
	document.getElementById("liLista").style.backgroundColor="#fff"
}

function validaForm(){
	err=0
	if(document.getElementById("tx_nome").value==""){
		document.getElementById("liNome").style.backgroundColor="#FC5454"
		err=1
	}
	if(document.getElementById("tx_email").value==""){
		document.getElementById("liEmail").style.backgroundColor="#FC5454"
		err=1
	}
	if(document.getElementById("txCombo").selectedIndex==0){
		document.getElementById("liLista").style.backgroundColor="#FC5454"
		err=1
	}
	if(document.getElementById("tx_mensagem").value==""){
		document.getElementById("liMensagem").style.backgroundColor="#FC5454"
		err=1
	}
	if (err==0){
		document.forms[0].submit
	}
	else{
		return false
	}
}

function ativaCampo(campo){
	document.getElementById(campo).style.backgroundColor="#f0f0f0"
}

function desativaCampo(campo){
	document.getElementById(campo).style.backgroundColor="#fff"
}