var jcFadeTimer; /*handler to the fade timer*/

function jc_showBusyImage(){
    clearTimeout(jcFadeTimer);
    jcOpacity('jc_busyDiv', 0, 100,0);
    jax.$("jc_busyDiv").innerHTML = "";
    var newImg = document.createElement('img');
    newImg.setAttribute('src', jc_livesite_busyImg);
    newImg.setAttribute('id',"jc_busyImg");
    jax.$("jc_busyDiv").appendChild(newImg);
}

function jc_removeBusyImage(){
    var t = jax.$("jc_busyImg");
    if(t != null){
        t.parentNode.removeChild(t);
    }
}

function jcRandomString() {
	var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
	var string_length = 12;
	var randomstring = '';
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}
	
	return randomstring;
}

function addComments(){
    jc_showBusyImage();
    jax.call('musicboxcom', 'jcxAddComment', jax.getFormValues('jc_commentForm'));
    
    if(jax.$("jc_name")){
    	if(jax.$("jc_name").value){
			jc_createCookie('jc_name', jax.$("jc_name").value, 14);
		}
	}
	
    if(jax.$("jc_email")){
    	if(jax.$("jc_email").value){
    		jc_createCookie('jc_email', jax.$("jc_email").value, 14);
    	}
	}
	   
    if(jax.$("jc_website")){
    	if(jax.$("jc_website").value){
			jc_createCookie('jc_website', jax.$("jc_website").value, 14);
		}
	}
    
    var rememberMe = true;
    if(jax.$("jc_rememberInfo"))    rememberMe = jax.$("jc_rememberInfo").checked;
    if(!rememberMe){
        jc_eraseCookie("jc_name");
        jc_eraseCookie("jc_email");
        jc_eraseCookie("jc_website");
    }
    return;
}

   
function jc_update(){
    if(jax.$("jc_contentid")!= null & jax.$("jc_option") != null & jax.$("jc_numComment")){
        jax.call('musicboxcom','jcxUpdateComment', jax.$("jc_contentid").value, jax.$("jc_option").value, jax.$("jc_numComment").innerHTML);
    }
}

function jc_unpublishPost(postId, opt, id){
    jax.call('musicboxcom','jcxUnpublish', postId, opt);
    if(jax.$(postId) != "undefined"){
        jax.$(postId).style.border = "medium solid #FF0000";
        jcOpacity(postId,  100, 50, 200);
    } 
}

function jc_commentAreaToggle(){
    if(typeof(jc_commentArea) != "undefined"){
        jc_commentArea.toggle();
        var img = jax.$("toggleAreaImg");
        if(img != null){
            var imgSrc = img.src;
            if (jc_commentArea.el.offsetHeight > 0){
                imgSrc = imgSrc.replace("min.gif", "max.gif");
            } else{
                imgSrc = imgSrc.replace("max.gif", "min.gif");
            }
            img.src = imgSrc;
        }
    }
}

function jc_commentFormToggle(){
    if(typeof(jc_commentFormArea) != "undefined"){
        jc_commentFormArea.toggle();
        var img = jax.$("toggleFormImg");
        if(img != null){
            var imgSrc = img.src;
            if (jc_commentFormArea.el.offsetHeight > 0){
                imgSrc = imgSrc.replace("min.gif", "max.gif");
            } else{
                imgSrc = imgSrc.replace("max.gif", "min.gif");
            }
            img.src = imgSrc;
        }
    }
}

function jc_disableForm(){
    if(jax.$("jc_name")) jax.$("jc_name").disabled = true;
    if(jax.$("jc_email")) jax.$("jc_email").disabled = true; 
    if(jax.$("jc_website")) jax.$("jc_website").disabled = true; 
    if(jax.$("jc_title")) jax.$("jc_title").disabled = true; 
    if(jax.$("jc_comment")) jax.$("jc_comment").disabled = true; 
    if(jax.$("jc_password")) jax.$("jc_password").disabled = true; 
    if(jax.$("jc_submit")) jax.$("jc_submit").disabled = true; 
}

function jc_enableForm(){
    if(jax.$("jc_name")) jax.$("jc_name").disabled = false;
    if(jax.$("jc_email")) jax.$("jc_email").disabled = false; 
    if(jax.$("jc_website")) jax.$("jc_website").disabled = false; 
    if(jax.$("jc_title")) jax.$("jc_title").disabled = false; 
    if(jax.$("jc_comment")) jax.$("jc_comment").disabled = false; 
    if(jax.$("jc_password")) jax.$("jc_password").disabled = false; 
    if(jax.$("jc_submit")) jax.$("jc_submit").disabled = false; 
}

function jc_insertNewEntry(entry, id){
    var comment_div = jax.$("jc_commentsDiv");
    var newCmt = document.createElement('div');
    newCmt.innerHTML = entry;
    jcChangeStyleOpac(0, newCmt.style);
    if(jc_orderBy == "0"){
        comment_div.insertBefore(newCmt,comment_div.firstChild);
    } else {
        comment_div.appendChild(newCmt);
    }
    newCmt.setAttribute("id", id);
    jcOpacity(id, 0, 100, 500); 
}

function jc_loadUserInfo(){

	if(document.getElementById("jc_name")){
		if(jc_username && !(jc_username.match(/^s+$/) || jc_username == "")){
			
			if(document.getElementById("jc_name")) {document.getElementById("jc_name").value = jc_username;} 
		}else {
			document.getElementById("jc_name").value = jc_readCookie('jc_name');}
	}
	
	if(document.getElementById("jc_email")){
		if(jc_email && !(jc_email.match(/^s+$/) || jc_email == "")){
			jc_email = jc_email.replace(/\+/, "@");
			if(document.getElementById("jc_email")) {document.getElementById("jc_email").value = jc_email;} 
		}else {document.getElementById("jc_email").value = jc_readCookie('jc_email');}
	}
	
	var sid = jcRandomString();
	if(document.getElementById("jc_website")) {document.getElementById("jc_website").value = jc_readCookie('jc_website');}
	if(document.getElementById("jc_sid")){document.getElementById("jc_sid").value = sid;
		 if(document.getElementById("jc_captchaImg")){
		 	document.getElementById("jc_captchaImg").src = jax_live_site + "?option=com_musicboxcom&no_html=1&task=img&jc_sid=" +  sid.toString();	 
		}
	} 
	
}

function jc_fadeMessage(){
    clearTimeout(jcFadeTimer);
    jcFadeTimer = setTimeout("jcOpacity('jc_busyDiv', 100, 0,1000)", 3000);
}


function jcOpacity(id, opacStart, opacEnd, millisec) {
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("jcChangeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++){
            setTimeout("jcChangeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function jcChangeOpac(opacity, id) {
    var object = jax.$(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
} 

function jcChangeStyleOpac(opacity, object) {
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
} 

function jc_createCookie(name, value, days){
    var expires = "";
    
	if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    
	document.cookie = name+"="+value+expires+"; path=/";
}

function jc_readCookie(name){
    var ca = document.cookie.split(';');
    var nameEQ = name + "=";
    for(var i=0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return "";
}

function jc_eraseCookie(name){
  jc_createCookie(name, "", -1);
}

////////////////////////////////////////////////////////////////////////////////
function jc_init(){
    if((typeof jc_update_period != "undefined")  && jc_autoUpdate){
        setTimeout("jc_update()", jc_update_period);
    }
}

function jc_addText(text, textarea){
	 var comment = jax.$(textarea).value;
	 comment = comment + text;
	 jax.$(textarea).value = comment;
}

// Surrounds the selected text with text1 and text2.
function jc_encloseText(text1, text2, textarea)
{
	// Can a text range be created?
	if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
	{
		var caretPos = textarea.caretPos, temp_length = caretPos.text.length;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text1 + caretPos.text + text2 + ' ' : text1 + caretPos.text + text2;

		if (temp_length == 0)
		{
			caretPos.moveStart("character", -text2.length);
			caretPos.moveEnd("character", -text2.length);
			caretPos.select();
		}
		else
			textarea.focus(caretPos);
	}
	// Mozilla text range wrap.
	else if (typeof(textarea.selectionStart) != "undefined")
	{
		var begin = textarea.value.substr(0, textarea.selectionStart);
		var selection = textarea.value.substr(textarea.selectionStart, textarea.selectionEnd - textarea.selectionStart);
		var end = textarea.value.substr(textarea.selectionEnd);
		var newCursorPos = textarea.selectionStart;
		var scrollPos = textarea.scrollTop;

		textarea.value = begin + text1 + selection + text2 + end;

		if (textarea.setSelectionRange)
		{
			if (selection.length == 0)
				textarea.setSelectionRange(newCursorPos + text1.length, newCursorPos + text1.length);
			else
				textarea.setSelectionRange(newCursorPos, newCursorPos + text1.length + selection.length + text2.length);
			textarea.focus();
		}
		textarea.scrollTop = scrollPos;
	}
	// Just put them on the end, then.
	else
	{
		textarea.value += text1 + text2;
		textarea.focus(textarea.value.length - 1);
	}
}

function slideContent(divName,direction)
{
	
	var obj =document.getElementById(divName);
	//var contentObj = document.getElementById('dhtmlgoodies_ac' + inputId);
	height = obj.clientHeight;
	if(height==0)height = obj.offsetHeight;
	height = height + direction;
	rerunFunction = true;
	//if(height>contentObj.offsetHeight){
	//	height = contentObj.offsetHeight;
	//	rerunFunction = false;
	//}
	if(height<=1){
		height = 1;
		rerunFunction = false;
	}

	obj.style.height = height + 'px';
	//var topPos = height - contentObj.offsetHeight;
	//if(topPos>0)topPos=0;
	//contentObj.style.top = topPos + 'px';
	
	if(rerunFunction){
		setTimeout('slideContent(\'' + divName + '\',' + direction + ')', 100);
	}else{
		if(height<=1){
			obj.style.display='none'; 
			
		}else{
			//dhtmlgoodies_activeId = inputId;
			//dhtmlgoodies_slideInProgress = false;
		}
	}
}



function jc_toggleDiv(divName){
	var e = document.getElementById(divName);
	
	if(!e.style.display || e.style.display=='none'){
		e.style.display='block';
		e.style.visibility = 'visible';
	} else {
		e.style.display='none';
		e.style.visibility = 'hidden';
	}
}
setTimeout("jc_init()", 20000);