<!--
//developer admin scripts
//-->
<!-- // Hide from old browsers 



// Maryanna Nesina

// mar@mail.bio.pu.ru

// http://www.bio.pu.ru/~mar

// http://www.webprogramming.boom.ru

// This script allows to show and hide layes for a set of main brousers

// And can be used to construct pull-down menus



// All the Layers get names from menu0 to menu_vith_nomber_m

// If we want to hide all the layers 

// we call showmenu() function without parametrs

// i.e. using onMouseOver evant



function DOMGetElement(xx) 

{

  // This function returns document's elemtnt acording it's name

  // Using Document Object Model

 if (document.getElementById) return document.getElementById(xx); 

 return nul;

}



function showmenu(name) 

{

// This is the main function that hide all the layers but the only one, 

// which name was delivered to the function as a parametr



var ii;  // cicle variable

var m=2; // variable that shows maximum nomber in layers' names 

var qq;  // here we store the name of a layer that we must show

var nen; // here we store the names of all layers (in a cicle)



NeMenu =  new Array(m+1); // an array to store the objects -  all the layers that should be hidden

nename = new Array(m+1);  // an array to store the names of all the layers  that should be hidden



// cicle to store the names of all the layers that should be hidden an array

for (ii=0; ii<=m; ii++) {

  nen="menu" + ii;

  nename[ii]=nen;

   if (name) { // this

    if (nen==name) qq=ii; // flag on - if it's a name of a layer hat should be shown

   }

}



// than we should show one layer and hide all the others (in a cicle)

// we do it for all the main types of brousers 



  if (document.getElementById) { 

  // Type 1: IE5,6; NN6; Mozilla

  // if our brouser supports DOM and we can get an object according to it's name

    if (name) { // if there was a parametr

     var Menu = DOMGetElement(name); // get an object 

     Menu.style.visibility='visible'; // and show it, changing the style

    }

    for (ii=0; ii<=m; ii++) { // for all the layers

     if (ii!=qq) { // but one that should be shown

      NeMenu[ii] = DOMGetElement(nename[ii]); // get an object that we do NOT show

      NeMenu[ii].style.visibility='hidden';  // and hide it, changing the style

     }

    }

    return true; // exit function

  } // that's all for the first type of brousers



 if(document.all) { 

  // Type 2: For document.all stands IE4-6 and Opera5, but IE5,6 were gone as the 1-st type 

   if (name) document.all[name].style.visibility= 'visible'; //if there was a parametr, show that layer using style

  for (ii=0; ii<=m; ii++) { 

   // hide all the layers but one that should be shown  - using style

   if (ii!=qq) document.all[nename[ii]].style.visibility= 'hidden'; 

  }

    return true; // exit function

 } // that's all for the second type of brousers



 if (document.layers) { 

   //Type 2: NN4

   if (name) document.layers[name].visibility='show'; // if there was a parametr, show that layer using layer

    for (ii=0; ii<=m; ii++) {

    // hide all the layers but one that should be shown  - using layer

     if (ii!=qq) document.layers[nename[ii]].visibility='hide';

    }

    return true; // exit function

  } // that's all for the second type of brousers (NN4)

} 

//-->