// Portfolio Javascript file
// Requires JQuery
// Created on 05/09/2007 by I Slade


function pageturn(url) {
	if ($("#pcont")) {
		$("#pcont").show();
		//$("#pageturn").style.visibility = "visible";
		var delay = setTimeout("goToPage('" + url + "')",250);
	}
}

function goToPage(whatPage) {
	//alert('go to page' + whatPage);	
	window.location.href=whatPage;
}

// Site variables
// TO DO: make these into parts of an object?
var mydomain = "http://www.islade.co.uk";
var imagefolder = "i/";

// Highlight links that are exnteral or documents.
// Relies on jQuery & shrinkUrl, called by DOM ready.
function linkHighlight() {
	
	// Find all content links that aren't image links.
	var links = $("#content a").filter(function(index) {
	  return $("img", this).length == 0;
	})
	
	$(links).each(function(i){
		
		var link = links[i];			// This link
		var url = $(link).attr("href").toLowerCase();	// the URL
		var contents = $(link).text();	// The text of the link

		// Trim long URLs in the content of each link. First, incase it's a long external/document link.
		if( ( contents.indexOf("http://")==0 ) && ( contents.length>25 ) ) {
			var newContent = shrinkUrl(contents);
			$(link).empty().append(newContent);
		}

		// Match documents
		if (url.lastIndexOf(".doc") == (url.length-4)){
			$(link).addClass("highlightlink");
			$(link).append("&nbsp;<img src='" + imagefolder + "je_doc.png' class='highlightlink' alt='(Word document) ' title='Word document' />");
		}
		
		// Match PDFs
		if (url.lastIndexOf(".pdf") == (url.length-4)){
			$(link).addClass("highlightlink");
			$(link).append("&nbsp;<img src='" + imagefolder + "je_pdf.png' class='highlightlink' alt='(PDF document) ' title='PDF document' />");
		}
		
		// Match ZIPs
		if (url.lastIndexOf(".zip") == (url.length-4)){
			$(link).addClass("highlightlink");
			$(link).append("&nbsp;<img src='" + imagefolder + "je_zip.png' class='highlightlink' alt='(Zip file) ' title='Zip file' />");
		}
		
		// Match external links
		if( ( url.indexOf("http://")==0) && ( url.indexOf(mydomain)!=0 ) ) {
			// Add image icon with title. NB: didn't include alt, as that would disrupt reading too much.
			$(link).append("&nbsp;<img src='" + imagefolder + "je_outbound.png' title='external site' class='highlightlink' alt='' />");
			$(link).addClass("highlightlink");
		}
	
		// Match withpage links
		//if( ( url.indexOf("#")==0)) {
//			// Add image icon with title.
//			$(link).append("<img src='" + imagefolder + "je_down.png' title='Within page link' class='highlightlink' alt='' />");
//			$(link).addClass("highlightlink");
//		}
		
		
	}); // end each
} // end linkHighlight

// Add anchor icon to each heading with an ID.
// Relies on jQuery, called by DOM ready.
//function headingAnchors(){
//
//	var headings = $("#content h2[@id], #content h3[@id]");
//	$(headings).each(function(i){
//
//		var heading = headings[i];		// This heading
//		var hId = $(heading).attr("id");	// get the ID.
//		
//		// Add an anchor image
//		$(heading).append("&nbsp;<a href='#" + hId + "' class='highlightlink'><img src='" + imagefolder + "je_anchor.png' title='Link to this heading' alt=' (anchor link).' class='highlightlink' /> </a>");
//
//	}); // end each
//}


// Shrink longer URLs by taking out the middle. 
// Called by quotes & linkHighlight
function shrinkUrl(longUrl){
	if((longUrl.length<=50)||(longUrl.indexOf('http')!=0)) return longUrl.substring(7);
	var l=longUrl.length;
	var firstUrlPart=longUrl.substring(7,49);
	var lastUrlPart=longUrl.substring(l-15,l);
	var shortUrl=firstUrlPart+'...'+lastUrlPart;
	return shortUrl;
}

//insert todays date formatted to newspaper format
function insertDate(){
	var d=new Date();
	var weekday=new Array(7);
	weekday[0]="Sunday";
	weekday[1]="Monday";
	weekday[2]="Tuesday";
	weekday[3]="Wednesday";
	weekday[4]="Thursday";
	weekday[5]="Friday";
	weekday[6]="Saturday";
	
	var month=new Array(12);
	month[0]="January";
	month[1]="February";
	month[2]="March";
	month[3]="April";
	month[4]="May";
	month[5]="June";
	month[6]="July";
	month[7]="August";
	month[8]="September";
	month[9]="October";
	month[10]="November";
	month[11]="December";
	
	var dayNo = d.getDate();
	if (dayNo.length > 1) {
		var dayNo2 = dayNo.substr(1,1);
	}
	switch(dayNo2) {
		case 1:
			dayNo = dayNo + "st";
		case 2:
			dayNo = dayNo + "nd";
		case 3:
			dayNo = dayNo + "rd";
		default:
			dayNo = dayNo + "th";
	}
	
	$("#date").html("<strong>" + weekday[d.getDay()] + "</strong>, " + dayNo + " " + month[d.getMonth()] + ", " + d.getFullYear());

}

function ajaxLoad(url, target) {
	$("#view").append("<p class=center>Please wait, loading data<br /><img src=i/ajax-loader.gif /></p>");
	
	$.ajax({
			   	type: "GET",
			   	url: url,
			   	timeout: 1000,
				error: function(msg){
				 	$("#view").html("<p>Sorry there was an error retrieving the information please try again.</p>");
				},
			   	success: function(msg){
				 	$("#view").html(msg);
			   	}
			 	});
			$("#view").animate({
   				opacity: 'show'
 				}, 1000); 
			return false;	
}


// Functions to call on DOM ready.
$(document).ready(function() {
	linkHighlight();
//	//headingAnchors();
	insertDate();
//	
//	$("#resume").each(function(i){
//		$(this).click( function() {
//			pageturn(this.href);
//			return false;
//		});
//	});
	
	//Attach ajax page load event to each internet section icon
	$("a.internetItem").each(function(i){
		//$(this).css("position","absolute");
		$(this).click(function(){
			return ajaxLoad(this.href, 'view');
		});
	});
	
	//Attach ajax page load event to each multimedia section icon
	$("a.mmicon").each(function(i){
		$(this).click(function(){
			return ajaxLoad(this.href, 'view');
		});
		$(this).attr({
			onmousedown: "window.acInit=false;"
        });
	});
	
	//Check for fisheye container and initialise control
	if (document.getElementById('fisheye')) {
		$('#fisheye').Fisheye(
		{
			maxWidth: 90,
			items: 'a',
			itemsText: 'span',
			container: '.fisheyeContainer',
			itemWidth: 90,
			proximity: 90,
			halign : 'center'
		});
	}
    //if (document.getElementById('panelinternet')) {
//		$('a').Tooltip();
//	});
});

jQuery(function( $ ){
			//borrowed from jQuery easing plugin
			//http://gsgd.co.uk/sandbox/jquery.easing.php
			$.easing.elasout = function(x, t, b, c, d) {
				var s=1.70158;var p=0;var a=c;
				if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
				if (a < Math.abs(c)) { a=c; var s=p/4; }
				else var s = p/(2*Math.PI) * Math.asin (c/a);
				return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
			};	
			$('#filmbar').css({overflow: "hidden"});
			$('#filmcont').append("<a href='#' id='scrollleft' title='Scroll Left'></a><a href='#' id='scrollright' title='Scroll Right'></a>");
			$('#scrollleft').click(function(){
			$('#filmbar').stop().scrollTo( '-=129px', { speed:2000, easing:'elasout', queue:true, axis:'x' } );
				return false;
			});
			$('#scrollright').click(function(){
			$('#filmbar').stop().scrollTo( '+=129px', { speed:2000, easing:'elasout', queue:true, axis:'x' } );
				return false;
			});
		});