// JavaScript Document

function news_scroll(direction){
	id = 'les_news';
	left_arrow_id = 'news-right';
	right_arrow_id = 'news-left';
	if(direction != 'right') direction = 'left';
	
	if(!slide_occuped[id]){
		slide_occuped[id] = direction;
		pos_slide_max[id] = (p_max[id] - p_show[id]) * p_size[id] * -1;
		
		//new pos calculating
		if(!new_pos[id] || new_pos[id] == "undefined") new_pos[id] = current_pos[id];
		if(!pos_slide_min[id]) pos_slide_min[id] = 0;
		
		if( direction == 'left' && current_pos[id] > pos_slide_max[id]){
			new_pos[id] = new_pos[id] - (p_show[id] * p_size[id]);
			if(document.getElementById(left_arrow_id).style.visibility == 'hidden') apparition(left_arrow_id, 100);
			if(new_pos[id] <= pos_slide_max[id]){
				new_pos[id] = pos_slide_max[id];
				disparition(right_arrow_id, 0);
			}
		}
		else if( direction == 'right' && current_pos[id] < pos_slide_min[id] ){
			new_pos[id] = new_pos[id] + (p_show[id] * p_size[id]);
			if(document.getElementById(right_arrow_id).style.visibility == 'hidden') apparition(right_arrow_id, 100);
			if(new_pos[id] >= pos_slide_min[id]){
				new_pos[id] = pos_slide_min[id];
				disparition(left_arrow_id, 0);
			}
		}
		
		slide_deceleration[id] = (new_pos[id] + current_pos[id]) / 2;
		//move
		if(direction == 'left' && new_pos[id] >= pos_slide_max[id]){
			p_first[id] = p_first[id] + p_show[id];
			p_last[id] = p_last[id] + p_show[id];
			slide_move(id);
		}
		else if(direction == 'right' && new_pos[id] <= pos_slide_min[id]){
			p_first[id] = p_first[id] - p_show[id];
			p_last[id] = p_last[id] - p_show[id];
			slide_move(id);
		}
		else{
			slide_occuped[id] = false;
			slide_deceleration[id] = false;
		}
	}
}

function change_showcase(id, total, color, links, gradiant){
	// animation flash
	for(i=1;i<=total;i++){
		if(id == i){
			document.getElementById('showcase_media'+i).style.display = 'block';
			document.getElementById('showcase_media'+i).style.height = '346px';
			if(navigator.userAgent.toLowerCase().indexOf('chrome') > -1){ //google chrome
				document.getElementById('showcase_media'+i).style.marginTop = '3px';
			}
			document.getElementById('hb'+i).value = 1;
		}
		else{
			document.getElementById('showcase_media'+i).style.display = 'none';
			document.getElementById('showcase_media'+i).style.height = '0px';
			if(navigator.userAgent.toLowerCase().indexOf('chrome') > -1){ //google chrome
				document.getElementById('showcase_media'+i).style.marginTop = '0px';
			}
			document.getElementById('hb'+i).value = 2;
		}
	}
	homeSlider.init('home_menu_slide','home_slide');
	
	// couleur du texte
	if(color == 1) document.getElementById('showcase').className = 'bright';
	else document.getElementById('showcase').className = '';
	
	// background du menu
	test = 'http://www.inverto.tv/';
	gradiant = test + gradiant.replace('../', '');
	document.getElementById('gradiant_showcase').style.backgroundImage = 'url('+gradiant+')';
	
	// link more infos
	if(!links) links = "#";
	document.getElementById('more_infos').href = links;
}

/**
* l (length) : nombre d'éléments du menu
* q : vitesse de déplacement du curseur
* i : vitesse d'agrandissement/diminution du curseur
* w (width) : largeur de la case sélectionné
* p (position) : position de la case sélectionné
**/
var homeSlider = function(){
	var m,e,g,s,q,i; e=[]; q=14; i=8;
	return{
		init:function(j,k){
			m=document.getElementById(j); e=m.getElementsByTagName('li');
			var i,l,w,p; i=0; l=e.length;
			for(i;i<l;i++){
				var c,v; c=e[i]; v=c.value; if(v==1){s=c; w=c.offsetHeight; p=c.offsetTop}
				c.onmouseover=function(){homeSlider.mo(this)}; // on passe la souris sur un menu est le trait arrive
				c.onmouseout=function(){homeSlider.mo(s)}; // on enlève la souris d'un menu et le trait retourne au menu sélectionné
			}
			g=document.getElementById(k); g.style.height=w+'px'; g.style.top=p+'px';
		},
		mo:function(d){
			clearInterval(m.tm);
			var el,ew; el=parseInt(d.offsetTop); ew=parseInt(d.offsetHeight);
			m.tm=setInterval(function(){homeSlider.mv(el,ew)},i);
		},
		mv:function(el,ew){
			var l,w; l=parseInt(g.offsetTop); w=parseInt(g.offsetHeight);
			if(l!=el||w!=ew){
				if(l!=el){var ld,lr,li; ld=(l>el)?-1:1; lr=Math.abs(el-l); li=(lr<q)?ld*lr:ld*q; g.style.top=(l+li)+'px'}
				if(w!=ew){var wd,wr,wi; wd=(w>ew)?-1:1; wr=Math.abs(ew-w); wi=(wr<q)?wd*wr:wd*q; g.style.height=(w+wi)+'px'}
			}
			else{
				clearInterval(m.tm)
			}
		}
	};
}();