/* jPaginator minified - version: 1.0 (2011) - author: Remy Elazare - http://remylab.net46.net/demos/jquery-plugins/jpaginator/ */
(function($) {

$.fn.jPaginator = function(o) {

	if (this.size() != 1)
    $.error( 'You must use this plugin with a unique element' );

  var s = {
  	selectedPage:null,
  	nbPages:100,
    nbVisible:10,
  	widthPx:30,
  	marginPx:1,
  	overBtnLeft:null,
  	overBtnRight:null,
  	maxBtnLeft:null,
    maxBtnRight:null,
  	withSlider:true,
  	withAcceleration:true,
  	speed:2,
  	coeffAcceleration:2,
  	minSlidesForSlider:3,
  	onPageClicked:null
  };

  var c = {
  	realWid:0,
  	curNum:1,
  	infRel:0,
  	cInfMax:0,
  	cInf:0,
  	nbMove:0,
  	isMoving:false,
  	isLimitL:false,
  	isLimitR:false,
  	listenSlider:true
  };

 var now_page = 0;

  return this.each(function(){

  	var $this = $(this);
  	if ( o ) $.extend( s, o );

  	init();

  	// events
    $(this).bind('reset', function(event,o) {
        $.extend( s , o );
        init();
    });

  	if (s.withSlider) {
  	  $this.find(".paginator_slider").slider({animate: false});

  		$this.find( ".paginator_slider" ).bind( "slidechange.jPaginator", function(event, ui) {
  			return handleSliderChange(event, ui);
  		});

  		$this.find( ".paginator_slider" ).bind( "slide.jPaginator", function(event, ui) {
  			return handleSliderChange(event, ui);
  		});

  		moveSliderTo(c.cInf);
  	}

  	/*if ( s.overBtnLeft ) {
  		$(s.overBtnLeft).bind('mouseover.jPaginator', function() {
  			return onEnterButton($(this),'left');
  		});
  	}   
    if ( s.overBtnLeft ) {
 		$(s.overBtnLeft).bind('mouseleave.jPaginator', function() {
  			return onLeaveButton($(this));
 		});
  	}
  	if ( s.overBtnRight ) {
  		$(s.overBtnRight).bind('mouseover.jPaginator', function() {
  			return moveToLimit($(this),'right');
  		});
  	}
    if ( s.overBtnRight ) {
 		$(s.overBtnRight).bind('mouseleave.jPaginator', function() {
  			return onLeaveButton($(this));
  		});
  	}*/

if ( s.overBtnRight ) {
	$(s.overBtnRight).bind('click.jPaginator', function() {
			if(s.nbPages>now_page)
				setByNum(++now_page);
  	});
}
if ( s.overBtnLeft ) {
	$(s.overBtnLeft).bind('click.jPaginator', function() {
			if(1<now_page)
				setByNum(--now_page);
  	});
}

	

  	if ( s.maxBtnLeft ) {
  		$(s.maxBtnLeft).bind('click.jPaginator', function() {
  			return moveToLimit('left');
  		});
  	}
  	if ( s.maxBtnRight ) {
  		$(s.maxBtnRight).bind('click.jPaginator', function() {
  			return moveToLimit('right');
  		});
  	}

  	$this.find(".paginator_p").bind('mouseenter.jPaginator', function() {
  		return onEnterNum($(this));
  	});

  	$this.find(".paginator_p").bind('mouseleave.jPaginator', function() {
  		return onLeaveNum($(this));
  	});

var setByNum = function(num){
		if(num<6){
			moveSliderTo(0);
		}else if(num>s.nbPage-6){
			moveSliderTo(c.cInfMax);
		}else{
			moveSliderTo(parseInt((num-6)*(c.cInfMax/( s.nbPages-10))));
		}
		$(".paginator_p").each( function() {
				var _num = parseInt($(this).text());
			if(num==_num){
				onClickNum($(this));
			}
		});
		
}

  	function onClickNum(e) {

  		var newPage = 1*e.html();
  		$this.find(".paginator_p.selected").removeClass("selected");
  		s.selectedPage = newPage;

  		//goToSelectedPage(); // uncomment to center page num on click
  		
  		$($this.find(".paginator_p_bloc .paginator_p").get(s.selectedPage-c.curNum+1)).addClass("selected"); 

  		if(s.onPageClicked)
  			s.onPageClicked.call(this,$this, s.selectedPage); 
		$("#main_image").click(function(){
		if(s.nbPages>now_page)
				setByNum(++now_page);
});
  	};

  	function onEnterButton(e,dir) {
  		c.isMoving = true ;
  		move(dir);
  	};

  	function onLeaveButton(e) {
  		reset();
  	};

  	function onEnterNum(e) {
  		$this.find(".paginator_p.over").removeClass("over");
  		e.addClass("over");
  	};

  	function onLeaveNum(e) {
  		$this.find(".paginator_p.over").removeClass("over");
  	};

  	function goToSelectedPage() {

  		var newNum = s.selectedPage- Math.floor((s.nbVisible-1)/2);
  		updateNum( newNum );

      c.listenSlider = false;
      moveSliderTo( c.cInf);
      c.listenSlider = true;
  	};

  	function updateNum(newNum) {

  		$this.find(".paginator_p.selected").removeClass("selected");

  		newNum = Math.min(s.nbPages-s.nbVisible+1,newNum);
  		newNum = Math.max(1,newNum);

  		var n = newNum-2  ;
  		$this.find(".paginator_p_bloc .paginator_p").each(function(i) {
  			n += 1;
  			$(this).html(n);
  			if ( s.selectedPage == n ) {
  				$(this).addClass("selected");
  			}
  		});

  		$this.find(".paginator_p_bloc").css("left","-"+c.realWid+"px");

  		c.curNum = newNum;
  		c.cInf = (newNum-1)*c.realWid;
  		c.infRel = 0;

  	};

  	function moveSliderTo(pos) {
  		var newPc = Math.round( (pos / c.cInfMax) * 100 ) ;
  		var oldPc = $this.find(".paginator_slider").slider("option", "value");

  		if ( newPc != oldPc ) {
  			$this.find(".paginator_slider").slider("option", "value", newPc);
  		}
  	};

  	function handleSliderChange(e, ui) {

  		if ( ! c.listenSlider ) return;

  		if ( !c.isMoving ) {
  			moveToPc(ui.value);
  		}
  	};

  	function moveToPc(pc) {

  		pc = Math.min(100,pc);
  		pc = Math.max(0,pc);

  		var realInf = Math.round( c.cInfMax * pc / 100);
  		var gap = realInf-c.cInf;

  		if ( pc == 100 ) { updateNum(s.nbPages-s.nbVisible+1); return; } ;
  		if ( pc == 0 ) { updateNum(1); return; } ;

  		moveGap(gap);
  	};


  	function moveGap(gap) {

  		var iGap = Math.abs(gap)/gap;
  		var pxGap = c.infRel+gap;
  		var pageGap = iGap * Math.floor( Math.abs(pxGap)/c.realWid);
  		var dGap = pxGap%c.realWid;

  		c.infRel = dGap;

  		var cInfTmp = (c.curNum - 1) * c.realWid + c.infRel ;

  		var newPage = c.curNum + pageGap;
  		if ( newPage < 1 )				{ cInfTmp = -1 } ;
  		if ( newPage > s.nbPages )	{ cInfTmp =  c.cInfMax + 1 } ;

  		if (cInfTmp < 0 ) { updateNum(1); c.cInf = 0; c.infRel = 0; moveSliderTo(0); c.isLimitL = true; reset(); return; }
  		if (cInfTmp > c.cInfMax ) { updateNum(s.nbPages); c.cInf = c.cInfMax; c.infRel = 0;  moveSliderTo(c.cInfMax); c.isLimitR = true; reset(); return; }

  		c.isLimitL = false; c.isLimitR = false;

  		c.cInf = cInfTmp;

  		if (gap == 0) return;
  		if ( pageGap != 0 ) updateNum(newPage);

  		moveSliderTo(c.cInf);
  		$this.find(".paginator_p_bloc").css("left", -1*dGap-c.realWid +"px");

  	};

  	function reset() {
  		c.nbMove = 0;
  		c.isMoving = false;
  	};

  	function moveToLimit(dir) {

  		if ( c.isLimitR && dir == 'right' ) { return ; }
  		if ( c.isLimitL && dir == 'left' ) { return ; }

  		var gap = Math.round(c.cInfMax/10);

  		if (dir=='left') { gap *= -1; }

  		moveGap(gap);

  		setTimeout(function() {
  			c.nbMove +=1;
  			moveToLimit(dir);
  		}, 20);

  	};

  	function move(dir) {

  		if ( c.isMoving ) {

  			var gap = Math.min( Math.abs(s.speed) ,5);
  			var coeff = Math.min( Math.abs(s.coeffAcceleration) ,5);
  			if ( s.withAcceleration ) {
  				gap = Math.round( gap +  Math.round( coeff * (c.nbMove*c.nbMove)/80000 ) );
  			}

  			if (dir=='left') { gap *= -1; }

  			moveGap(gap);

  			setTimeout(function() {
  				c.nbMove +=1;
  				move(dir);
  			}, 10);
  		}
  	};
  	function init() {
  	
  	    var totalSlides,bSlider,bOver;

        s.nbVisible = Math.min(s.nbVisible,s.nbPages);

  	    $this.find(".paginator_p_bloc > .paginator_p").remove();
        // init c data
        for (i=1;i<=s.nbVisible+2;i++) {
            $this.find(".paginator_p_bloc").append($("<a class='paginator_p'></a>") );
        }
        // hide over and max buttons if they're useless...    
        bOver = (s.nbVisible<s.nbPages);
        if ( s.overBtnLeft ) {
        	 if (bOver) $(s.overBtnLeft).show(); else $(s.overBtnLeft).hide();
        }
        if ( s.overBtnRight ) {
        	 if (bOver) $(s.overBtnRight).show(); else $(s.overBtnRight).hide();  
        }
        if ( s.maxBtnLeft ) {
        	 if (bOver) $(s.maxBtnLeft).show(); else $(s.maxBtnLeft).hide();  
        }
        if ( s.maxBtnRight ) {
        	 if (bOver) $(s.maxBtnRight).show(); else $(s.maxBtnRight).hide();  
        }
  	
        if ( !bOver ) {
            $this.find(".paginator_slider").hide();
            $this.find(".paginator_slider").children().hide();
        } else {
            totalSlides = Math.ceil(s.nbPages/s.nbVisible); bSlider = s.withSlider;
            if ( totalSlides < s.minSlidesForSlider) bSlider = false; // hide slider when needed
            else bSlider = s.withSlider;
    
            if ( !bSlider) {
                $this.find(".paginator_slider").hide();
                $this.find(".paginator_slider").children().hide();
            } else { 
                $this.find(".paginator_slider").show();
                $this.find(".paginator_slider").children().show();
            }
        }

        var borderPx = 0;
        var sBorder = $this.find(".paginator_p").first().css("border-left-width");
        if (sBorder.indexOf("px")>0) {
            borderPx = sBorder.replace("px","")*1;
        }

        c.realWid = s.widthPx + s.marginPx*2 + borderPx*2;


        var widAll = 1* c.realWid * s.nbVisible ;

        $this.find(".paginator_p").css("width",s.widthPx + "px");
        $this.find(".paginator_p").css("margin","0 " + s.marginPx + "px 0 " + s.marginPx + "px" );

        $this.find(".paginator_p_wrap").css("width",widAll+ "px");
        $this.find(".paginator_slider").css("width",widAll+ "px");

        c.cInfMax = s.nbPages * c.realWid - ( s.nbVisible * c.realWid ) ;

        // init selected page
        s.selectedPage = Math.min(s.selectedPage+1,s.nbPages);       
        goToSelectedPage();
        
        if ( s.selectedPage )
            $($this.find(".paginator_p_bloc .paginator_p").get(s.selectedPage-c.curNum+1)).addClass("selected");
       	    $this.find(".paginator_p").bind('click.jPaginator', function() {
          	    now_page = parseInt($(this).text());
                    return onClickNum($(this));
            });
	    var counter = 1;
	    now_page = s.selectedPage-1;
	   
            $(".paginator_p").each( function() {
				
				if(counter++==s.selectedPage)
					onClickNum($(this));
	    });
        
  	}

  });
};
})( jQuery );