// JavaScript Document

//eventBnr_url
//eventBnr_img
function changeBannerImg(id,img_url,img_link){
	document.getElementById(id+'_img').filters[0].apply(); 	
	document.getElementById(id+'_img').src = img_url;
	document.getElementById(id+'_img').filters[0].play();
	document.getElementById(id+'_link').href = img_link;
}
function rotation_bnr(num,func_id){
	if(num > 1){
		var t_val = Math.floor(Math.random()* num);		
		switch(func_id){
			case 'center' :
				ChangeMainBanner(t_val);
				break;
		}
	}
}
function mainBannerMouseOutHandler(){
	eventBnr_timer = setInterval("rotation_bnr(eventBnr_img.length,'center')", 3000);
}
function mainBannerMouseOverHandler(bnr_num){
	clearInterval(eventBnr_timer);
	ChangeMainBanner(bnr_num);
}
function ChangeMainBanner(num){
	//alert(eventBnr_img.length);
	/*
	for(j=0;j<eventBnr_img.length;j++){
		var td='main_center_bnr_td'+j;
		var obj=document.getElementById(td);
		if(j==num)
			obj.bgColor='#f87318'; 
		else
			obj.bgColor='#666666';   
	}	*/

	changeBannerImg('eventBnr',eventBnr_img[num],eventBnr_link[num]);
}