var ratingDisabled = false;

function selectRating(rating){
    if(ratingDisabled){ return; }
    if(!rating){
        for(var i = 1; i <= 5; i++){
            document.getElementById('rating_' + i).src = document.getElementById('rating_off').src;
        }
        document.getElementById('ratingMessage').innerHTML = '';
    }
    for(i = 1; i <= rating; i++){
        document.getElementById('rating_' + i).src = document.getElementById('rating_on').src;
    }
    for(i = (rating+1); i <= 5; i++){
        document.getElementById('rating_' + i).src = document.getElementById('rating_off').src;
    }
    var ratingMessage = '';
    switch(rating){
        case 1: ratingMessage = 'Not useful'; break
        case 2: ratingMessage = 'A little useful'; break
        case 3: ratingMessage = 'Useful'; break
        case 4: ratingMessage = 'Very useful'; break
        case 5: ratingMessage = 'Everything I needed'; break
    }
    document.getElementById('ratingMessage').innerHTML = ratingMessage;
}

function submitRating(rating,article){
    ratingDisabled = true;
    for(var i = 1; i <= 5; i++){
        document.getElementById('rating_' + i).className = 'rating_disabled';
    }
    document.getElementById('ratingMessage').innerHTML = document.getElementById('ratingMessage').innerHTML + ' (submitted)';
    var http = getHttpRequest();
    http.open("GET", "/knowledge/rate_article.php5?article_id=" + article + "&rating=" + rating, true);
    http.onreadystatechange = function() {
        if (http.readyState == 4) {
            // Commplete
        }
    }
    http.send(null);
}

function getHttpRequest(){
    if (typeof XMLHttpRequest != 'undefined') {
        return new XMLHttpRequest();
    } else {
        try {
            return new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                return new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {
                alert("Your browser is not compatible with this service.");
            }
        }
    }
}

function validateArticleRequest(formObj){
	if(formObj.contact_name.value.length < 1){
		alert('Please provide your name.');
		return false;
	}
	if(formObj.contact_number.value.length < 1){
		alert('Please provide a valid contact telephone number.');
		return false;
	}
	if(formObj.email_address.value.length < 1){
		alert('Please provide a valid e-mail address.');
		return false;
	}
	if(formObj.section_name.value.length < 1){
		alert('Please provide the name of the section this request applies to.');
		return false;
	}
	if(formObj.details.value.length < 1){
		alert('Please provide details of the request.');
		return false;
	}
    var telValidator = /^[0-9\ ]+$/;
    if(!telValidator.test(formObj.contact_number.value)){
        alert('Please provide a valid contact telephone number.');
		return false;
    }
    formObj.action='/knowledge/article_request_submit.php5';
    formObj.submit();
	return false;
}

function MM_preloadImages() { //v3.0
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
	if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
	var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_findObj(n, d) { //v4.01
	var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

$(function(){ $("label").inFieldLabels(); });