//***********************************************
// Validacion de forma de recomendacion de sitio 
// **********************************************
function recom(form){

        var fieldnames = new Array (4)
		fieldnames[0] = "- Tu nombre"
		fieldnames[1] = "- Tu email"
        fieldnames[2] = "- Nombre de tu amigo(a)"
		fieldnames[3] = "- Email de tu amigo(a)"

		var onoff=0
		var alertboxnames = ""
	
		var fields = new Array (4)
		fields[0] = form.nombre_de.value.length
		fields[1] = form.email_de.value.length
		fields[2] = form.nombre_para.value.length
		fields[3] = form.email_para.value.length
	        
		for (var i=0; i < fields.length; i++) {
			if (fields[i] == 0) {
				alertboxnames = alertboxnames + fieldnames[i] + "\n ";
		    	onoff ++;
			}              
		}
		if(onoff == 0) {
			return true
		}else{
			if(onoff == 1){
				var catness = alertboxnames.substring (0, alertboxnames.indexOf("\n "));
				alert ("Por favor ingresa el siguiente dato: \r\r\n " + catness);
			}else{
				var catness = alertboxnames.substring (0, alertboxnames.length-2)
				alert("Por favor ingresa los siguientes datos: \r\r\n " + catness);
			}
			return false
		}
}


//***********************************************
// Validacion de forma de recomendacion de cupon 
// **********************************************
function recomendar_cupon(form){

        var fieldnames = new Array (2)
        fieldnames[0] = "- Nombre de tu amigo(a)"
		fieldnames[1] = "- Email de tu amigo(a)"

		var onoff=0
		var alertboxnames = ""
	
		var fields = new Array (2)
		fields[0] = recomendar.nombre_para.value.length
		fields[1] = recomendar.email_para.value.length
	        
		for (var i=0; i < fields.length; i++) {
			if (fields[i] == 0) {
				alertboxnames = alertboxnames + fieldnames[i] + "\n ";
		    	onoff ++;
			}              
		}
		if(onoff == 0) {
			javascript:recomendar_pop()
		}else{
			if(onoff == 1){
				var catness = alertboxnames.substring (0, alertboxnames.indexOf("\n "));
				alert ("Por favor ingresa el siguiente dato: \r\r\n " + catness);
			}else{
				var catness = alertboxnames.substring (0, alertboxnames.length-2)
				alert("Por favor ingresa los siguientes datos: \r\r\n " + catness);
			}
			return false
		}
}

//***********************************************
// Validacion de forma de recomendacion de cupon 
// **********************************************
	function recomendar_pop(form){
		nombre_para = recomendar.nombre_para.value
		email_para = recomendar.email_para.value
		cupon = recomendar.cupon.value
		pagina_resultados = "cupones_recomendar_pop_db.php?nombre=" + nombre_para + "&email=" + email_para + "&cupon=" + cupon;
		coordenada_x = (screen.width) ? (screen.width- 400)/2 : 0;
		coordenada_y = (screen.height) ? (screen.height- 200)/2 : 0;
		window.open(pagina_resultados,'pagina','top=' + coordenada_y +',left=' + coordenada_x + ',width=400,height=200,directories=no,menubar=no,location=no,resizable=no,status=no,toolbar=no,scrollbars=yes');
	}
	/*
function recomendar_pop(){
	coordenada_x = (screen.width) ? (screen.width- 400)/2 : 0;
	coordenada_y = (screen.height) ? (screen.height- 250)/2 : 0;
	window.open("cupones_recomendar_pop.php?us=" + document.recomendar.nombre_para.value + "em=" + document.recomendar.email_para.value + "cupon=" + document.recomendar.cupon.value,"new",'top=' + coordenada_y +',left=' + coordenada_x + ',width=400,height=390,directories=no,menubar=no,location=no,resizable=no,status=no,toolbar=no,scrollbars=no');
}
*/