function menuCss(){  
	if(navigator.appVersion.indexOf("MSIE")==-1){return;}
 
 var i,k,g,lg,r=/\s*p7hvr/,nn='',c,cs='p7hvr',bv='menu_topo';
 
 for(i=0;i<10;i++){
	 g=document.getElementById(bv+nn);if(g){
 		lg=g.getElementsByTagName("LI");if(lg){for(k=0;k<lg.length;k++){
 			lg[k].onmouseover=function(){c=this.className;cl=(c)?c+' '+cs:cs;
 			this.className=cl;};lg[k].onmouseout=function(){c=this.className;
			this.className=(c)?c.replace(r,''):'';
			};
			}
			}
			}
		nn=i+1;
	}
}