function load() {
	doMouseOverAndOut(".imgmenu",changeSrcImageOver,[],changeSrcImageOut,[]);
}
function changeSrcImageOver(obj, args, event) {
	var id = obj.id;
	var objName = id.substring(4,id.length);
	obj.src = 'imagens/'+objName+'_on.jpg';
}
function changeSrcImageOut(obj, args, event) {
	var id = obj.id;
	var objName = id.substring(4,id.length);
	obj.src = 'imagens/'+objName+'.jpg';
}

function doMouseOverAndOut(cssPath, funcOver, argsFuncOver, funcOut, argsFuncOut) {
	$$(cssPath).each(
		function(obj){
			obj.observe('mouseover', function (event){ funcOver.apply(this, [obj, argsFuncOver, event]); }.bindAsEventListener(this));
			obj.observe('mouseout', function (event){ funcOut.apply(this, [obj, argsFuncOut, event]); }.bindAsEventListener(this));
		}
	);
}

function validForm(form){
	if(form.nome.value == "")
  {
  	alert("O campo nome deve ser preenchido!")
		form.nome.focus()
		return false
	}
  else if(form.tel.value == "")
  {
  	alert("O campo telefone deve ser preenchido!")
		form.tel.focus()
		return false
	}	
  else if(form.email.value == "")
  {
  	alert("O campo email deve ser preenchido!")
		form.email.focus()
		return false
	}
  else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(form.email.value))) 
	{ 
		alert("O campo email deve ser preenchido corretamente!"); 
		document.form.email.focus(); 
		return false; 
	}	 
  else if(form.mensagem.value == "")
  {
  	alert("O campo mensagem deve ser preenchido!")
		form.mensagem.focus()
		return false
	}
}

 var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-17416441-1']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();