function isEmail(str) {
	var supported = 0;
	if (window.RegExp) {
		var tempStr = "a";
		var tempReg = new RegExp(tempStr);
		if (tempReg.test(tempStr)) supported = 1;
	}
	if (!supported)
		return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
		var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
		var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
		return (!r1.test(str) && r2.test(str));
}

function validar(){
	if (form1.nombre){
		if (!form1.nombre.value){
			alert("No ingreso su nombre");
			form1.nombre.className = "error";
			form1.nombre.focus();
			return false;
		}else{
			form1.nombre.className = "";
		}
	}

	if (form1.email){
		if (!form1.email.value){
			alert("No ingreso su email");
			form1.email.className = "error";
			form1.email.focus();
			return false;
		}else{
			if (!isEmail(form1.email.value)){
				alert("El email ingresado no es valido");
				form1.email.className = "error";
				form1.email.focus();
				return false;
			}else{
				form1.email.className = "";
			}
		}
	}

	if (!form1.consulta.value){
		alert("No ingreso su consulta");
		form1.consulta.className = "error";
		form1.consulta.focus();
		return false;
	}else{
		form1.consulta.className = "";
	}
}

function set_order(pagina,cid){
	var ad = document.getElementById('ad').value;
	var order_by = document.getElementById('order_by').value;

	location.href=pagina+'?cid='+cid+'&order_by='+order_by+'&ad='+ad;
}

function set_order_type(pagina,cid,tid){
	var ad = document.getElementById('ad').value;
	var order_by = document.getElementById('order_by').value;

	location.href=pagina+'?cid='+cid+'&order_by='+order_by+'&ad='+ad+'&tid='+tid;
}