//Bespoke js for shift.ms

function loadBtnImages()
{
    var numElements=document.getElementsByTagName('img').length;
    var eIndex, fElement;
    var img=new Object();
    //Enumerate elements and check required elements are filled in and display message if not
    for(eIndex=0; eIndex < numElements ; eIndex++)
    {
        fElement=document.getElementsByTagName('img')[eIndex];
        if(fElement.id.substring(0,3)=='btn')
        {
            img["img"+eIndex]=new Image();
            img["img"+eIndex].src=fElement.src.replace(/\.png/,"Over.png");
        }
    }
}

function randomSticker(filter,page,search)
{  //the id and type is passed for the comments to be displayed via Ajax
    var t2 = Math.random(); //Fixes an IE caching issue
    new Ajax.Updater('slideshow', '_sticker_slideshow.ajax.php', { method: 'get', parameters: { f: filter, p: page, search: search, s: t2 } });
    setTimeout('randomSticker('+filter+','+page+',"'+search+'")',3000);
    return true;
    
}

//Below are the functions that can be called from the flash
function ajaxCommentSubmit(button, idField)
{
    //Change the submit button to send via Ajax and call the correct JS function.
    //Used on pages getting comment via Ajax.  e.g. sdrr.php
    var validatorResult;
    validatorResult=formValidator(button.form);

    if(validatorResult)
    {  //Submit the form data

     var url = '_comments.inc.ajax.php';
     var pars = 'iF_comment='+escape($('iF_comment').value);
     //pars = pars + '&iF_rating='+escape($('iF_rating').value);
     pars = pars + '&iF_'+idField+'='+escape($('iF_'+idField).value);
     pars = pars + '&iF_userid='+escape($('iF_userid').value);
     pars = pars + '&type='+escape($('type').value);
     pars = pars + '&t='+escape($('t').value);
     pars = pars + '&customFld_previewMode='+escape($('customFld_previewMode').value);
     if($('customFld_previewMode').value=="viewPreview")
     {  
        pars = pars + "&iFbtn=Preview";
     } else if($('customFld_previewMode').value=="editPreview")
     {  
        pars = pars + "&iFbtn=Edit";
     } else {  
        pars = pars + "&iFbtn=Save";
     }
     pars = pars + "";
     var target = 'comments';
     var myAjax = new Ajax.Updater(target, url, {method: 'post', postBody:  pars });
    }
   
    return false;  //Go nowhere!
}

function previewThis(button)
{
	$('customFld_previewMode').value='viewPreview';
	
	if ( $('iF_comment').value=='' )
		 $('iFbtnSave').click();
	else ajaxCommentSubmit(button,'".$itemTypes[$type+1]."');
}

function editPreview(button) {
	$('customFld_previewMode').value='editPreview';
	ajaxCommentSubmit(button,'".$itemTypes[$type+1]."');
}
    
function showComments(itemId, itemType)
{  //the id and type is passed for the comments to be displayed via Ajax
    var t2 = Math.random(); //Fixes an IE caching issue
    $('comments').innerHTML= "<div  style='position: absolute; margin-left: 30px; z-index: 99; background: white;'><img src='cms/images/indicator.gif' alt='loading' /> Loading...</div>"+$('comments').innerHTML;
    new Ajax.Updater('comments', '_comments.inc.ajax.php', 
        { method: 'get', 
        parameters: { t: itemId, type: itemType, s: t2 }
        });
    return false;
}

function hideComments()
{  //the SDRR flash uses this to hide comments when the tip is closed
    $('comments').innerHTML= "";
    return false;
}

    
function ratingUpdate(rate, itemId, itemType)
{
    //Function to store the rating vote and update the screen via Ajax
    var votes=readCookie("votes");
    if(!votes) votes="";
    if(votes!="")
    {  //Check you can only vote once
        if(votes.indexOf(itemType+"_"+itemId+",")!=-1)
        {
            alert("You have already rated this item.");
            return false
        }
    }
    var t2 = Math.random(); //Fixes an IE caching issue
    $('rating'+itemId).innerHTML= "<div  style='position: absolute; margin-left: 30px; z-index: 99; background: white;'><img src='cms/images/indicator.gif' alt='loading' /> Loading...</div>"+$('rating'+itemId).innerHTML;
    new Ajax.Updater('rating'+itemId, '_rating.inc.ajax.php', { method: 'get', parameters: { r: rate, i: itemId, t: itemType, s: t2 } });
    createCookie("votes",votes+itemType+"_"+itemId+",",1);
    //alert("Thank you for rating this item.");
    return false;
}

function emailContact(itemId, itemType, action)
{   //Click in SDRR flash to report a tip or send to a friend
    document.location.href="contact.php?t="+itemType+"&a="+action+"&i="+itemId;
}

function showHelp(helpId)
{  //Function to fetch and display help text
    var t2 = Math.random(); //Fixes an IE caching issue
    //$('popup_help_text_content').innerHTML= "<div  style='position: absolute; margin-left: 30px; z-index: 99; background: white;'><img src='cms/images/indicator.gif' alt='loading' /> Loading...</div>"+$('popup_help_text').innerHTML;
    new Ajax.Updater('popup_help_text_content', '/_helptext.ajax.php',
        
        { method: 'get',
        onComplete: function()
            { 
              $('popup_help_text').style.display="block";
              if(typeof(window.mouseX)!='undefined')
              {
                $('popup_help_text').style.top=window.mouseY+5+"px";
                $('popup_help_text').style.left="";
                $('popup_help_text').style.right=(pageWidth()-window.mouseX)-5+"px";
              }
            }, 
        parameters: { h: helpId, s: t2 }
        });
    return false;
}


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

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

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function zoomIn(element)
{ //This makes the zoom in div visible, and loads the correct image
    // You need to pass the element containing the original small image, the name of the src is then "munged" to get the large image name.
    var thePic=document.getElementById(element).src;
    var xOffset, yOffset;
    var temp=new Image();
    temp.src=$('zoompic').src;  //Fixes an IE bug.  IE can't find the image width from an image directly, only if declared as an image object
    //xOffset=Math.round(posLeft()+((pageWidth()-temp.width)/2));
    yOffset=Math.round(posTop()+((pageHeight()-temp.height)/2));
    xOffset=Math.round(posLeft()+((996-temp.width)/2));
    document.getElementById("zoom").style.display="block";
    document.getElementById("zoom").style.top=yOffset+10+"px";
    document.getElementById("zoom").style.left=xOffset+"px";
    //document.getElementById("zoompic").src="./theme/indicator.gif";
    //document.getElementById("zoompic").src=thePic.replace(/_medium/,"");
} 

function submitForm(formName)
{
	$(formName).submit();
}