function by_id(id)
{
	if (!document.all)
	{
		return document.getElementById(id);
	}
	else
	{
		return document.all[id];
	}
}
function layer_state(id)
{
	var l;
    l=by_id(id);
    if (typeof(l)=='undefined')
    {
        return false;
    }
    else
    {
        return l.style.display;
    }
}
function layer_change_state(id,st)
{
	var l;
    l=by_id(id);    
    if (typeof(l)=='undefined')
    {
        return false;
    }
    else
    {
        l.style.display=st;
        return true;
    }
}
function layer_change(id,ipl,imi)
{
	var l;
	l=by_id("l_"+id);
	if (ipl!='') {p=by_id("i_"+id);}
	if (l.style.display=="none")
	{
		l.style.display="block";
		if (ipl!='') {p.src=imi;}
	}
	else
	{
		l.style.display="none";
		if (ipl!='') {p.src=ipl;}
	}
}
function layer_close_all(pref,ipl,imi)
{
	e=document.getElementsByTagName("DIV");
	for (i=0;i<e.length;i++)
	{
		if (e[i].id.substr(0,pref.length)==pref) {e[i].style.display="none";}
	}
	if (ipl!='')
	{
	    for (i=0;i<document.images.length;i++)
	    {
		    if (document.images[i].id.substr(0,2)=="i_") {document.images[i].src=ipl;}
	    }
    }
}
function layer_open_all()
{
	e=document.getElementsByTagName("DIV");
	for (i=0;i<e.length;i++)
	{
		if (e[i].id.substr(0,2)=="l_") {e[i].style.display="block";}
	}
	for (i=0;i<document.images.length;i++)
	{
		if (document.images[i].id.substr(0,2)=="i_") {document.images[i].src="img/imi.gif";}
	}
}
menu_id='';
function domenu(id,st)
{
	var l,i,sel1,sel2,old_id;
	old_id=-1;
	l=by_id(id);
	if (st=='none')
	{
		if (id=='sub1') 
		{
			l=by_id('sub11');if (l) {l.style.display=st;}
			l=by_id('sub12');if (l) {l.style.display=st;}
			l=by_id('sub13');if (l) {l.style.display=st;}
		}
		l=by_id(id);
		if (l) {l.style.display=st;}
		return true;
	}
	if (l) 
	{
		l.style.display='inline';
		//alert(menu_id.length+'|'+id.length);
		if (menu_id.length==id.length && menu_id!=id)
		{
			l=by_id(menu_id);
			if (l) {l.style.display='none';}			
		}
		menu_id=id;
	}

}
function menu_hide_all()
{
	var l;
	l=by_id('sub1');
	if (l) {l.style.display='none';}
	l=by_id('sub2');
	if (l) {l.style.display='none';}
	l=by_id('sub3');
	if (l) {l.style.display='none';}
	l=by_id('sub4');
	if (l) {l.style.display='none';}	
	l=by_id('sub11');
	if (l) {l.style.display='none';}
	l=by_id('sub12');
	if (l) {l.style.display='none';}
	l=by_id('sub13');
	if (l) {l.style.display='none';}
}
function make_popup(strURL, w,h)
{
	if (w=='' || w==0) {w=335;} 
	if (h=='' || h==0) {h=305;}
	window.open(strURL,null, 'height='+h+',width='+w+',top=100,left=100,status=no,toolbar=no,menubar=no,location=no');
}