function showTab1(id, tab){	
	var className = getObject(id).className;
	if(className == "tabshow"){
		return;
	}
	
	if(id == "page1"){
		getObject("tabgroup1").style.backgroundImage = "url(/images/tab001.jpg)";
	}else if(id == "page2"){
		getObject("tabgroup1").style.backgroundImage = "url(/images/tab002.jpg)";
	}else if(id == "page3"){
		getObject("tabgroup1").style.backgroundImage = "url(/images/tab003.jpg)";
	}
	getObject("page1").className = "hidden";
	getObject("page2").className = "hidden";
	getObject("page3").className = "hidden";
	getObject(id).className = "shown";
	
	getObject("page1Tab").className = "tabhide";
	getObject("page2Tab").className = "tabhide";
	getObject("page3Tab").className = "tabhide";
	getObject(tab).className = "tabshow";
}
function showTab2(id, tab){
	var className = getObject(id).className;
	if(className == "tabshow"){
		return;
	}
	
	if(id == "page4"){
		getObject("tabgroup2").style.backgroundImage = "url(/images/tab004.jpg)";
		getObject("page5").className = "hidden";
		getObject("page4").className = "shown";
	}else if(id == "page5"){
		getObject("tabgroup2").style.backgroundImage = "url(/images/tab005.jpg)";
		getObject("page5").className = "shown";
		getObject("page4").className = "hidden";
	}
	
	getObject("page4Tab").className = "tabhide";
	getObject("page5Tab").className = "tabhide";
	getObject(tab).className = "tabshow";
}