// JavaScript Document

function next_img(img_control,img_complete_string,seperator)
{
	
		img_arr				= img_complete_string.split(seperator)
		var img_cont		= document.getElementById(img_control)
		next_id = 0
		
		for (i=0 ; i <= img_arr.length -1 ; i++)
		{
	
			if (img_cont.src.indexOf(img_arr[i]) > 0)
			{
				next_id	= i + 1
				
				if (next_id < img_arr.length  && img_arr[next_id] != "")
				{
	
					img_cont.src = img_arr[next_id]
					
					break;
				}
				else
					break;
				
				
			}
		}
}

function previous_img(img_control,img_complete_string,seperator)
{
		img_arr				= img_complete_string.split(seperator)
		var img_cont		= document.getElementById(img_control)

		
		for (i=0 ; i <= img_arr.length -1 ; i++)
		{

			if (img_cont.src.indexOf(img_arr[i]) > 0)
			{
				pre_id	= i - 1

				if (pre_id > -1 && img_arr[pre_id] != "")
				{
	
					img_cont.src = img_arr[pre_id]
					break;
				}
				else
					break;
				
				
			}
		}
		
}