var big_img_def_src = '';
function initLinkGal()
{
	var _links = document.getElementById("sirvice-imgs");
	var big_img = document.getElementById("sirvice-img");
		var _lists = _links.getElementsByTagName("li");

		for (k = 0; k< _lists.length; k++)
		{
			if (_lists[k].parentNode.className.indexOf("images") != -1)
			{
				if(big_img)
				{
					big_img_def_src = big_img.src;
				}
				var nodes = _lists[k].getElementsByTagName("a");
				for (var i = 0; i < nodes.length; i++)
				{		
					nodes[i].onmousedown = function () 
					{
						var _imgs = this.getElementsByTagName('img');
						if(_imgs[1] && big_img)
						{
							big_img.src = _imgs[1].src;
						}
					}
				}
			}
		}
}
if (window.addEventListener){
	window.addEventListener("load", initLinkGal, false);
}
else if (window.attachEvent){
	window.attachEvent("onload", initLinkGal);
}