// JavaScript Document


function changeClass(target, nav_type)
{
	if(nav_type == "main_menu")
	{
		var tabs_1 = ['group_overview', 'our_clients', 'our_companies'];
		
		for(var i=0; i<tabs_1.length; i++)
		{
			var name_1 = document.getElementById(tabs_1[i]);
			
			if(target == tabs_1[i])
			{
				name_1.className = "active";
			}
			else
			{
				name_1.className = "inactive";
			}
		}
	}
	else if(nav_type == "sub_menu")
	{
		var tabs_2 = ['polyesters', 'fibres', 'pet', 'nylon', 'acrylonitrile', 'films', 'shanghai'];
		
		for(var j=0; j<tabs_2.length; j++)
		{
			var name_2 = document.getElementById(tabs_2[j]);
			
			if(target == tabs_2[j])
			{
				name_2.className = "active";
			}
			else
			{
				name_2.className = "inactive";
			}
		}
	}
}