function swap(){
//alert("");
	var swap1 = document.getElementById("swap1");
	var swap2 = document.getElementById("swap2");
	var swap3 = document.getElementById("swap3");
	
	var swapT1 = document.getElementById("swapT1");
	var swapLink = document.getElementById("swapLink");
	
	swapT1.filters[0].Apply();
	swapT1.filters[0].Play(duration=2);
	
	var seapImage1 = new Array( "images/index_logo1.gif", "images/index_logo2.gif", "images/index_logo3.jpg" );
	var seapImageLink = new Array( "checked.php?pageId=65", "http://www.gzbjrc.com/", "http://www.bjyhgg.com" );
	
	if( swap1.style.display == "" ){
		swap1.style.display = "none";
		swap2.style.display = "";
		swap3.style.display = "none";
		swapLink.href=seapImageLink[1];
	}else if( swap2.style.display == "" ){
		swap1.style.display = "none";
		swap2.style.display = "none";
		swap3.style.display = "";
		swapLink.href=seapImageLink[2];
	}else if( swap3.style.display == "" ){
		swap1.style.display = "";
		swap2.style.display = "none";
		swap3.style.display = "none";
		swapLink.href=seapImageLink[0];
	}
	
	setTimeout( "swap();", 6000 );
}

window.onload = swap;