function $(id){
	var o=document.getElementById(id);
	if((o==null || typeof(o)=="undefined") && document.all)o=document.all.id;
	return o;
}


//页面切换效果1－四个层切换
function shownav(a,b,c,d,e,f,g){
	
	
	$("m_"+a).className = "m_li_a";
	$("m_"+b).className = "m_li";
	$("m_"+c).className = "m_li";
	$("m_"+d).className = "m_li";
	$("m_"+e).className = "m_li";
	$("m_"+f).className = "m_li";
	$("m_"+g).className = "m_li";
	
	
	$("s_"+a).style.display = "block";
	$("s_"+b).style.display = "none";
	$("s_"+c).style.display = "none";	
	$("s_"+d).style.display = "none";
	$("s_"+e).style.display = "none";
	$("s_"+f).style.display = "none";
	$("s_"+g).style.display = "none";

}


//页面切换效果1－四个层切换
function showtar(a,b,c,d,e){
	$(a).style.display = "block";
	$(b).style.display = "none";
	$(c).style.display = "none";
	$(d).style.display = "none";
	$(e).style.display = "none";

}

function jumpurl(url){
	
		var   obj   =   document.getElementById( "tagOpenWin"); 
		obj.href   =   url; 
		obj.click(); 
		
	}