// JavaScript Document
// Delete contents of a text box
function del_contents(ele, text){
	if (ele.value == text){
		ele.value = "";
	}
}
// ... then add them back in
function add_contents(ele, text){
	if (ele.value == ""){
		ele.value = text;
	}
}

function rating_mover(rating, pid){
	update_ratingtext(pid,'Rating: ' + rating);
	rating_display(rating, pid);
}

function rating_mout(pid){
	var ratingfield = document.getElementById('overall_' + pid);
	update_ratingtext(pid, rating_count[pid]);
	rating_display(ratingfield.value, pid);
}

function rating_display(rating, pid){
	if (rating > 0){
		document.getElementById('overall_' + pid + '_1').src = '/images/rating_start.jpg';
	}else{
		document.getElementById('overall_' + pid + '_1').src = '/images/rating_white_star.jpg';
	}
	if (rating > 1){
		document.getElementById('overall_' + pid + '_2').src = '/images/rating_start.jpg';
	}else{
		document.getElementById('overall_' + pid + '_2').src = '/images/rating_white_star.jpg';
	}
	if (rating > 2){
		document.getElementById('overall_' + pid + '_3').src = '/images/rating_start.jpg';
	}else{
		document.getElementById('overall_' + pid + '_3').src = '/images/rating_white_star.jpg';
	}
	if (rating > 3){
		document.getElementById('overall_' + pid + '_4').src = '/images/rating_start.jpg';
	}else{
		document.getElementById('overall_' + pid + '_4').src = '/images/rating_white_star.jpg';
	}
	if (rating > 4){
		document.getElementById('overall_' + pid + '_5').src = '/images/rating_start.jpg';
	}else{
		document.getElementById('overall_' + pid + '_5').src = '/images/rating_white_star.jpg';
	}
}

function rating_click(rating, pid){
	update_ratingtext(pid, 'Thanks');
	var ratingfield = document.getElementById('overall_' + pid);
	ratingfield.value = rating;
	rating_mout(pid);
	if((rating_obj.readyState == 4) || (rating_obj.readyState == 0)){
		rating_obj.open('get', '/ajax_rating.php?pid=' + pid + '&rating=' + rating + '&nocache=' + nocache());
		rating_obj.onreadystatechange = function(){ rating_response(pid); }
		rating_obj.send(null);
	}
}

function rating_response(pid){
	if(rating_obj.readyState == 4){
		var response_parts = rating_obj.responseText.split('|');
		document.getElementById('overall_' + pid).value = response_parts[1];
		setTimeout("update_ratingtext('" + pid + "','" + response_parts[0] + "'); rating_display('" + response_parts[1] + "','" + pid + "')",500);
	}
}

function update_ratingtext(pid, updatetxt){
	document.getElementById('rating_avg_' + pid).innerHTML = updatetxt;
}

function createRequestObject() {
	var ro;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
		ro = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		ro = new XMLHttpRequest();
	}
	return ro;
}

function nocache(){
	var d = new Date();
	return ((d.getTime())*1)
}

var rating_obj = createRequestObject();
var rating_sent = 0;

var rating_count = new Array;