function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  }
  }
}
delayhide_top = false;

function showCategory(obj, id) {
	obj = $(obj);
	if(id=='header_menu1'){
	$('header_menu2').hide();$('header_menu3').hide();$('header_menu4').hide();$('header_menu5').hide();
	tar = 'about';
	}else if(id=='header_menu2'){
	$('header_menu1').hide();$('header_menu3').hide();$('header_menu4').hide();$('header_menu5').hide();
	tar = 'services';
	}else if(id=='header_menu3'){
	$('header_menu1').hide();$('header_menu2').hide();$('header_menu4').hide();$('header_menu5').hide();
	tar = 'communtiy';
	}else if(id=='header_menu4'){
	$('header_menu1').hide();$('header_menu2').hide();$('header_menu3').hide();$('header_menu5').hide();
	tar = 'contribute';
	}else if(id=='header_menu5'){
	$('header_menu1').hide();$('header_menu2').hide();$('header_menu3').hide();$('header_menu4').hide();
	tar = 'news';
	}
	$(id).onmouseout = function(e){
		delayhide_top = setTimeout(function(){ 
												$(id).hide();
												
											}, 300) //hide menu
	}
	document.onclick=function(e){
		var event=typeof e!="undefined"? e : window.event
		hide=true;
		if(event.target){
			event.target.ancestors().each(function(el){
				if(el.id==id)
					hide=false;
				})
			if($(id).style.display!='none' && hide )
				$(id).hide();
			else if($(id).style.display=='none' && event.target.id == tar)
				$(id).show();
		}
	}
	$(id).show();
	$(id).style.left=obj.offsetLeft+"px";
	$(id).style.top=obj.offsetTop+obj.offsetHeight+"px";
}

function checkTimer() {
	if(delayhide_top)
		clearTimeout(delayhide_top);
}

function showCategoryClick(obj, id) {

}

function hideMenu(e, id) {
	
}

function hideMakeMenu() {
	$('header_menu1').hide();
	$('header_menu2').hide();
	$('header_menu3').hide();
	$('header_menu4').hide();
	$('header_menu5').hide();
}