#center{
	float:left;
	width:268px;
	overflow: hidden;
}
#left{
	float:left;
	width:490px;
	overflow:hidden;
}
#right{
	float:right;
	width:219px;
	overflow:hidden;
}
#big_center{
	float:left;
	width:758px;
	overflow:hidden;
}