function Destaque(){
	var id = document.getElementById("slide");
	var links = id.getElementsByTagName('a');
	id.onmouseover=function(){
		for(var i = 0; i < links.length; i++){
			links[i].style.display = 'block';
		}
	}
	id.onmouseout=function(){
		for(var i = 0; i < links.length; i++){
			links[i].style.display = 'none';
		}
	}
}

function Contact(){
	var Label = document.getElementById("form").getElementsByTagName("label");
	for(var i = 0; i < Label.length; i++){
		var input = Label[i].getElementsByTagName(Label[i].className)[0];
		input.value = input.name;
		input.onfocus=function(){
			if(this.value == this.name){ this.value = ''; }
			this.style.border = '1px solid #FF9900';
		}
		input.onblur=function(){
			if(this.value == ''){
				this.value = this.name;
			}
			this.style.border = '1px solid #999999';
		}
	}
}

function Contato(){
	var form = document.form_contato;
	if(form.nome.value != form.nome.name && form.nome.name != ""){
		if(form.email.value != form.email.name && form.email.name != ""){
			if(form.assunto.value != form.assunto.name && form.assunto.name != ""){
				if(form.mensagem.value != form.mensagem.name && form.mensagem.name != ""){
					var url = "includes/php/email.php";
					var valor = "nome="+form.nome.value+"&email="+form.email.value+"&mensagem="+form.mensagem.value+"&telefone="+form.telefone.value+"&assunto="+form.assunto.value;
					if (window.XMLHttpRequest){
						req = new XMLHttpRequest(); 
						req.onreadystatechange = RetornaAjax;
						req.open("POST",url,true);
						req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; iso-8859-1");  
						req.setRequestHeader("CharSet", "iso-8859-1")  
						req.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");  
						req.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");  
						req.setRequestHeader("Pragma", "no-cache"); 
						req.send(valor);
					}
					else if (window.ActiveXObject){
						req = new ActiveXObject("Microsoft.XMLHTTP");
						if (req){
							req.onreadystatechange = RetornaAjax;
							req.open("POST",url,true);
							req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; iso-8859-1");  
							req.setRequestHeader("CharSet", "iso-8859-1")  
							req.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");  
							req.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");  
							req.setRequestHeader("Pragma", "no-cache"); 
							req.send(valor);
						}
					}
				}else{ alert('Por favor digite sua Mensagem!'); form.mensagem.focus(); }
			}else{ alert('Por favor digite um Assunto!'); form.assunto.focus(); }
		}else{ alert('Por favor digite seu E-mail!'); form.email.focus(); }
	}else{ alert('Por favor digite seu nome!'); form.nome.focus(); }
}

function RetornaAjax(){
	if(req.readyState == 4){
		if(req.status == 200){
			var json = eval('('+req.responseText+')');
			var texto = json.texto;
			texto = texto.replace(/\+/g," ");
			texto = unescape(texto);

			var conteudo = document.getElementById("ajax");
			conteudo.innerHTML = texto;

			if(json.cond == 1){
				Contact();
			}

			var alerta = json.alerta;
			alerta = alerta.replace(/\+/g," ");
			alerta = unescape(alerta);
			alert(alerta);
		}
		else{
			window.alert("Houve um problema ao obter os dados:\n" + req.statusText);
		}
	}
}

function Start(pagina){
	document.getElementsByTagName('body')[0].className = pagina;
	if(pagina == 'home'){
		var slide = document.getElementById("slide");
		var left = document.getElementById("left");
		var right = document.getElementById("right");
		slide.onmouseover=function(){
			left.style.display = 'block';
			right.style.display = 'block';
		}
		slide.onmouseout=function(){
			left.style.display = 'none';
			right.style.display = 'none';
		}
	}
	if(pagina == 'contato'){
		Contact();
	}
}