$(document).ready(function() {
	   	var primaryid = $('#portfolio-thumbs img:first-child').attr("id");
	   	// if there are multiple thumbs
	   	if (primaryid){
	   		$('.main-thumb').hide();
	   		primaryid = primaryid.replace('thumbs-','');
	   		var primarythumb = 'main-thumb-'+primaryid;
	   		$('#'+primarythumb).show();
	   		$('#portfolio-thumbs img').fadeTo('fast',.3);
				$('#portfolio-thumbs img:first-child').fadeTo('fast',1);
				$('#portfolio-thumbs img').click(function(){
					$('#portfolio-thumbs img').fadeTo('fast',.3);
					$(this).fadeTo('fast',1);
					var childthumb = 'main-thumb-'+$(this).attr('id').replace('thumbs-','');
					$('.main-thumb').hide();
					$('#'+childthumb).show();
				});
	   	}
	   });