// Tabs functions Document

 	var tabs = 4;
 	function activate( id ){
	
 	 	deactivateAll();
		if (id==tabs){
		getObj('tab_id_'+id).className = "act_last";
		}else if(id=="1"){
		getObj('tab_id_'+id).className = "act_first";
		}else{
		getObj('tab_id_'+id).className = "act";
		}
		
 				previous= id - 1;
		getObj('tab_id_'+previous).className = "inact_prev";
 		getObj('cont_id_'+id).style.display = "block";
 	}
 	
 	function deactivateAll(){
 		for( var i = 1; i <= tabs; i++ ){
 			getObj('tab_id_'+i).className = "inact";
		
 			getObj('cont_id_'+i).style.display = "none";
 		}
			getObj('tab_id_'+tabs).className = "inact_last";
 	}
 	
 	function getObj(id){
 		var obj=false;
 		if(document.getElementById(id)) obj=document.getElementById(id);
 		return obj
 	}
 	
function spot(){
	if (getObj('customer_spot_one').className=='active_spot'){
		getObj('customer_spot_one').className = "inactive_spot";
		getObj('customer_spot_two').className = "active_spot";
	}else{
		getObj('customer_spot_one').className = "active_spot";
		getObj('customer_spot_two').className = "inactive_spot";
	}
	change_spot();
}

function change_spot(){
		setTimeout("spot()",3000);
}