// JavaScript Document
function slider (sliderimg,sourcenymber)
{
	var img = document.getElementById(sliderimg).getAttribute("src");
	var img_array = img.split("/");
	var imgsrc = (img_array[img_array.length-1]);
	var imgsrc_array = imgsrc.split(".");
	var imgname = (imgsrc_array[0]);
	var imgname_array = imgname.split("-");
	var imgnumber = (imgname_array[imgname_array.length-1]);
	
	var imgfolder = "images/"
	var imgpath = imgfolder + (imgname_array[0]) + "-" + sourcenymber + ".jpg";

	document.getElementById(sliderimg).setAttribute("src",imgpath);
}

function next (sliderimg,lastimagenumber)
{
	var img = document.getElementById(sliderimg).getAttribute("src");
	var img_array = img.split("/");
	var imgsrc = (img_array[img_array.length-1]);
	var imgsrc_array = imgsrc.split(".");
	var imgname = (imgsrc_array[0]);
	var imgname_array = imgname.split("-");
	var imgnumber = (imgname_array[imgname_array.length-1]);
	
	var nextimgnumber = eval(eval(imgnumber) + 1); 
	var imgfolder = "images/"
	var imgpath = imgfolder + (imgname_array[0]) + "-" + nextimgnumber + ".jpg";

	document.getElementById(sliderimg).setAttribute("src",imgpath);

	if (imgnumber == lastimagenumber)
	{
		var lastimgpath = imgfolder + (imgname_array[0]) + "-" + lastimagenumber + ".jpg";
		document.getElementById(sliderimg).setAttribute("src",lastimgpath);
	}
}

function prev (sliderimg,firstimagenumber)
{
	var img = document.getElementById(sliderimg).getAttribute("src");
	var img_array = img.split("/");
	var imgsrc = (img_array[img_array.length-1]);
	var imgsrc_array = imgsrc.split(".");
	var imgname = (imgsrc_array[0]);
	var imgname_array = imgname.split("-");
	var imgnumber = (imgname_array[imgname_array.length-1]);
	
	var previmgnumber = eval(eval(imgnumber) - 1); 
	var imgfolder = "images/"
	var imgpath = imgfolder + (imgname_array[0]) + "-" + previmgnumber + ".jpg";

	document.getElementById(sliderimg).setAttribute("src",imgpath);

	if (imgnumber == firstimagenumber)
	{
		var firsttimgpath = imgfolder + (imgname_array[0]) + "-" + firstimagenumber + ".jpg";
		document.getElementById(sliderimg).setAttribute("src",firsttimgpath);
	}
}