function P7_ExpMenu(){
 if(navigator.appVersion.indexOf("MSIE")==-1)
	{
		return;
	}
 var i,k,g,lg,r=/\s*p7hvr/,nn='',c,cs='p7hvr',bv='p7menubar';
 
 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;
	}
}