var MaxMenuItems 	= 100;

function ShowMenu(MenuNo) {
    
    if (document.getElementById("Submenu" + MenuNo)) { 
	document.getElementById("Submenu" + MenuNo).style.visibility = "visible";
    }
}

function HideMenu(MenuNo) {
    
    if (document.getElementById("Submenu" + MenuNo)) { 
	document.getElementById("Submenu" + MenuNo).style.visibility = "hidden";
    }
}

// ExceptNo - multiple params like 1,3,8
function HideMenuAll(ExceptNo) {

    var i;
    var arr;
    var found;
    ExceptNo = ExceptNo + ',';
    arr = ExceptNo.split(",");
    
    for(i = 1; i <= MaxMenuItems; i++) { 

	found = 0;
	for (x in arr) {
	    if (arr[x] == i) {
		found = 1;
	    }
	}	
    
        if ((found == 0) && (document.getElementById("Submenu" + i))) { 
            document.getElementById("Submenu" + i).style.visibility = "hidden";
        }
    }
}


// IMAGE BUTTONS

function SwitchImg()
{ 
  var rem, keep=0, store, obj, switcher=new Array, history=document.Data;
    for (rem=0; rem < (SwitchImg.arguments.length-2); rem+=3) {
    	store = SwitchImg.arguments[(navigator.appName == 'Netscape')?rem:rem+1];
    if ((store.indexOf('document.layers[')==0 && document.layers==null) ||
        (store.indexOf('document.all[')==0 && document.all==null))
         store = 'document'+store.substring(store.lastIndexOf('.'),store.length);
         obj = eval(store);
    if (obj != null) {
   	   switcher[keep++] = obj;
      switcher[keep++] = (history==null || history[keep-1]!=obj)?obj.src:history[keep];
      obj.src = SwitchImg.arguments[rem+2];
  } }
  document.Data = switcher;
}

function RestoreImg()
{
  if (document.Data != null)
    for (var rem=0; rem<(document.Data.length-1); rem+=2)
      document.Data[rem].src=document.Data[rem+1];
}

// TreeCollapse, TreeExpand
function TreeExpandToogle(ID) {
    var ExpandButton	= document.getElementById("tree_expand"+ID);
    var ExpandArea	= document.getElementById("tree"+ID);
    if (ExpandArea) {
        if (ExpandArea.style.display == "") {
	    ExpandButton.innerHTML	 	= "<img src='./files/admin/button_expand.gif' alt='' />";
	    ExpandArea.style.display	= "none";
	} else {
	    ExpandButton.innerHTML	 	= "<img src='./files/admin/button_collapse.gif' alt='' />";
    	    ExpandArea.style.display	= "";
	}
    }
}

// Popup window
function PopupNewWindow(url, width, height, params) {
    if (params == "")
	params = 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no';
    var left = (screen.width - width) / 2;
    var top  = (screen.height - height) / 2;
    params = params + ',width=' + width + ',height=' + height + ',screenX=' + left + ',screenY=' + top;
    window.open(url, '' ,params); 
}