function changeImg(lnk){

var project = $(lnk).parent().parent().parent().parent().parent().attr('id');

var targetImg = $('#' + project + ' .project_image img');
var sourceImg = $(lnk).attr('href');

var sourceImgKey = lnk.innerHTML;

targetImg.attr('src' , sourceImg);
targetImg.attr('rel' , sourceImgKey);

$('#' + project + ' .project_image').height = 'auto';

return false;	
}

function prevImg(lnk){
var project = $(lnk).parent().parent().parent().attr('id');			
var pagingList = $('#' + project + ' div.project_image_paging ul.paging_list');
var currentImg = parseInt( $('#' + project + ' .project_image img').attr('rel') );				
var pages = pagingList.children();

if( currentImg != '1' ){					
	key = currentImg -1;
	
}else{
	key = pages.length;
}

$( '#' + project + ' li a').css('color', '#000000');
$( '#' + project + ' li.paging_list_item_' + key + ' a').css('color', '#eeeeee');

var sourceImg =  $('#' + project + ' li.paging_list_item_' + key + ' a' ).attr('href');

$('#' + project + ' .project_image img').attr('src' , sourceImg);
$('#' + project + ' .project_image img').attr('rel' , key);


return false;

}

function nextImg(lnk){

if( $(lnk).parent().attr('class') == 'project_image' ){
	var project = $(lnk).parent().parent().attr('id');
	
	
}else{
	var project = $(lnk).parent().parent().parent().attr('id');
}

var pagingList = $('#' + project + ' div.project_image_paging ul.paging_list');
var currentImg = parseInt( $('#' + project + ' .project_image img').attr('rel') );				
var pages = pagingList.children();				

if( currentImg != pages.length ){					
	key = currentImg +1;
	
}else{
	key = 1;
}

$( '#' + project + ' li a').css('color', '#000000');
$( '#' + project + ' li.paging_list_item_' + key + ' a').css('color', '#eeeeee');

var sourceImg =  $('#' + project + ' li.paging_list_item_' + key + ' a' ).attr('href');

$('#' + project + ' .project_image img').attr('src' , sourceImg);
$('#' + project + ' .project_image img').attr('rel' , key);

return false;

}