var arr_cabos = new Array();

function go_page(mylink){
		 mframe = document.getElementById('myframe');
		 mframe.src = mylink; 	 
}

function change_diametro_antigo(mselect){
	var valor = mselect.options[mselect.selectedIndex].text;
	lyr = document.getElementById('form_diametro_outro');
	if( valor == 'outro' ){
		 lyr.style.display = '';
	}else{
		 lyr.style.display = 'none'; 
	}
}

function change_diametro(mselect){
	var index =mselect.selectedIndex;
	var lyr = document.getElementById('lyr_preco');
	var str = "";
	var preco = "";
	if( index > 0 ){
		preco = arr_cabos[index-1];
		str = "Preço:  " + preco;
	}
	lyr.innerHTML = str;
	
	mselect.form.preco.value = preco; 
}

function go_order(btn){
	var mform = btn.form;
	var index1 = mform.cor.selectedIndex;
	var index2 = mform.diametro.selectedIndex;

	if( index1 > 0 && index2 > 0 ){
		mform.submit();
	}else{
		alert('Select a Colour and a Diameter');  
	}	 
}

function go_info(btn){
	var mform = btn.form;
	var index1 = mform.cor.selectedIndex;
	var index2 = mform.diametro.selectedIndex;
	
	mform.action = '../info.html';
	mform.submit();
		 
}


function set_page_products(){
	var btn = document.getElementById('btn_order');
	var select_diametro = document.getElementById('select_diametro');
	
	var len = select_diametro.length;
	if( len <= 1 ){
		btn.style.display = 'none';
	}
}