#div1 {
	position: relative;
	height: 27px;
}

#div1a1 {
	position: absolute;
}
#div1a2 {
	position: absolute;
	z-index: 2;
	left: 173px;
	top: 27px;
}
#div1b1 {
	position: absolute;
}
#div1b2 {
	z-index: 2;
	position: absolute;
	left: 362px;
	top: 27px;

}