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