#header{position:relative;/*margin:0px 0px 10px 0px;*/width:920px;/*height:79px;*/float:left;}
*html #header{width:920px;/*height:80px;*/}
#content{position:relative;width:920px;float:left; background:#fff;}
#leftcontent{position:relative;width:160px;float:left; display:none;}
#centercontent{position:relative;padding:20px 0 20px 23px;width:707px;float:left;}
*html #centercontent{position:relative;padding:20px 0 20px 23px;width:700px;float:left;}
#rightcontent{position:relative;width:160px; padding:20px 13px;float:left;}