function swap_color(img, sel_value)
{
	var disp_img = document.getElementById("product_image");
	var opt_select = document.getElementById("color_option");
	
	disp_img.src = img;
	
	for(var i = 0; i < opt_select.length; i++)
	{
		if(opt_select[i].value == sel_value)
		{
			opt_select.selectedIndex = i;
			break;	
		}
	}
	return true;
}