var step_h = 10;
var step_t_h = 100;
var max_h = 350;
var min_h = 60;
var i11 = 1;
var j = 1;
var timer1;
var timer2;

function div_height(){
	j=1;
	var islogo=i11;
	var div_name = document.getElementById("ad_images");
	var height = div_name.clientHeight||div_name.offsetHeight;
	if(i11==1){
		document.getElementById("img1").style.display="none";
		document.getElementById("img2").style.display="";
		div_name.style.height = ((height+step_h)>max_h?max_h:(height+step_h))+"px";
	}else if(i11==-1){
		if((height-step_h)<min_h){
			document.getElementById("img1").style.display="";
			document.getElementById("img2").style.display="none";
		}
		div_name.style.height = ((height-step_h)<min_h?min_h:(height-step_h))+"px";
	}
	if((i11==1&&(height+step_h)<max_h)||(i11==-1&&(height-step_h)>=min_h)){
		timer1 = window.setTimeout(div_height,step_t_h);
	}else{
		window.clearTimeout(timer1);
		close11();
	}
}

function close11(){
	if(j==1){
		timer2=window.setTimeout(close11,60000);
		++j;
		return;
	}else{
		i11=-1;
		div_height();
		window.clearTimeout(timer2);
	}
}

function location1(){
	i11=-1;
	div_height();
}