// random images script
// steeves fons

	var currentLg = getCookie('language');
	if( currentLg == null || currentLg == "" ){
		currentLg = "fr";
	}
	
	var interval = 4; // delay between rotating images (in seconds)
	var random_display = 1; // 0 = sequential, 1 = random
	interval *= 1000;
	
	var image_index = 0;
	
	image_list = new Array();
	image_list[image_index++] = new imageItem("images/imagestop/1" + currentLg + ".jpg");
	image_list[image_index++] = new imageItem("images/imagestop/2" + currentLg + ".jpg");
	image_list[image_index++] = new imageItem("images/imagestop/3" + currentLg + ".jpg");
	image_list[image_index++] = new imageItem("images/imagestop/4" + currentLg + ".jpg");
	
	var number_of_image = image_list.length;
	
	function imageItem(image_location) {
		this.image_item = new Image();
		this.image_item.src = image_location;
	}
	
	function get_ImageItemLocation(imageObj) {
		return(imageObj.image_item.src)
	}
	
	function generate(x, y) {
		var range = y - x + 1;
		return Math.floor(Math.random() * range) + x;
	}
	
	function getNextImage() {
		if (random_display) {
			image_index = generate(0, number_of_image-1);
		}
		else {
			image_index = (image_index+1) % number_of_image;
		}
		
		var new_image = get_ImageItemLocation(image_list[image_index]);
		return(new_image);
	}
	
	function rotateImage(place) {
		var new_image = getNextImage();
		document[place].src = new_image;
		var recur_call = "rotateImage('"+place+"')";
		setTimeout(recur_call, interval);
	}
	
	// Cookie
   function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ';', len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+'='+escape( value ) +
		( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()
		( ( path ) ? ';path=' + path : '' ) +
		( ( domain ) ? ';domain=' + domain : '' ) +
		( ( secure ) ? ';secure' : '' );
}

function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + '=' +
			( ( path ) ? ';path=' + path : '') +
			( ( domain ) ? ';domain=' + domain : '' ) +
			';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}