function changeTab(id){

var tabs = document.getElementById("tabs").getElementsByTagName("li"); 
var content;
for(i=0;i<tabs.length;i++){
	content = document.getElementById("content_"+tabs[i].id);
	if(tabs[i].id==id && i!=0){
		tabs[i].className = 'contentRatesUlli selectedRates';		
		content.className ="tab_content_show";
	}
	else if(tabs[i].id==id && i==0){
		tabs[i].className = 'contentRatesUlli firstRates selectedRates';
		content.className ="tab_content_show";
	}
	else if(i==0){
		tabs[i].className = 'contentRatesUlli firstRates unselectedRates';
		content.className ="tab_content_hide";
	}
	else{
		tabs[i].className = "contentRatesUlli";
		content.className ="tab_content_hide";
	}
}

/*
	var tab2 = document.getElementById(id);
	tab2.className = 'selected';
	var tab1 = document.getElementById('tab0');
	tab1.className = 'first unselected';
*/	
}