/*------------------------------------------------------
ͼƬ±ä»»
*/
function idxShowTab(tid){
	
	idxHideAllTab();

	document.getElementById('div_top_'+tid).style.display = 'block';
	document.getElementById('topTab_'+tid).className = 'selectedTab';

}

function idxHideAllTab(){

	for(var i=0;i<3;i++){

		document.getElementById('div_top_'+i).style.display = 'none';
		document.getElementById('topTab_'+i).className = '';

	}

}

var currentTab = -1;
var mouseOverTab = false;
var tabTimeoutHandle;

function playTabs(){
	
	if(mouseOverTab == false){
		
		currentTab++;
		if(currentTab>2){
			currentTab = 0;
		}
		
		var oContainer = document.getElementById('TopContainer');
		
		try{
			oContainer.filters[0].apply();
		}catch(ex){};

		idxShowTab(currentTab);

		try{
			oContainer.filters[0].play();
		}catch(ex){};

	}


	tabTimeoutHandle = setTimeout('playTabs()',2000);

}

function showTab(tid){
	
	clearTimeout(tabTimeoutHandle);
	currentTab = tid-1;
	playTabs();

}