if (navigator.appName == "Netscape") {
    	layerStyleRef="layer.";
        layerRef="document.layers";
        styleSwitch="";

	}else{
    	layerStyleRef="layer.style.";
        layerRef="document.all";
        styleSwitch=".style";
   	}

/*
	function showSubmenu(nm){	
		eval(layerRef+'["'+nm+'"]'+styleSwitch+'.visibility="visible"'); 
	};
	function hideSubmenu(nm){	
		eval(layerRef+'["'+nm+'"]'+styleSwitch+'.visibility="hidden"'); 
	};
*/



function showSubmenu(nm)
{	
};
function hideSubmenu(nm)
{	
};
	
	
	

var bgcolor_margin = "#000000";
var bgcolor_cell = "#DEDEDE";
var bgcolor_hcell = "#cccccc";
var background_cell = "";
var background_hcell = "";
var class_name = "menu_dropdown";
var cell_spacing = 1;
var cell_padding = 3;
var height = 15;









var arMenu = 
[
// Bookstore
  [
    [
      ['New Publications', 'index.php',
	    [
		  [
  			['Masonry Inspectors Handbook 7th Edition', 'book.php?catID=2&pID=149'],
  			['2009 Masonry Codes & Specifications Compilation', 'book.php?catID=2&pID=148'],
			['Reinforced Masonry Engineering Handbook, 6th Edition', 'book.php?catID=5&pID=146'],		   
			['2008 MSJC Code', 'book.php?catID=4&pID=134']
		  ],
          349, 75, 280
		]
	  ],
      ['Clay Brick Publications', 'products.php?catID=1'],
	  ['Concrete Block Publications', 'products.php?catID=2'],
	  ['Grouting Publications', 'products.php?catID=3'],
	  ['Masonry Codes & Specifications', 'products.php?catID=4'],
	  ['Technical Publications', 'products.php?catID=5'],
	  ['Fireplace/Chimney Publications', 'products.php?catID=6'],
	  ['General Information', 'products.php?catID=7'],
	  ['Energy Publications', 'products.php?catID=8'],
	  ['Visual Aids', 'products.php?catID=9']
    ],
	235, 66, 220
  ]
]

var timerMenu;

function hideMenu() {
  timerMenu=setTimeout('hideMenuItems()', 200);
}

function hideMenuItems() {
  for (var i=0; i<arMenu.length; i++)
    hideMenuItem('menu_'+i, arMenu[i]);
}

function hideMenuItem(name, arr) {
  MM_showHideLayers(name,'','hide');
  for(var i=0;i<arr[0].length;i++)
    if ((arr[0][i][2]) && (arr[0][i][2].length>0))
      hideMenuItem(name+'_'+i, arr[0][i][2]);
}

function showMenu(name) {
  MM_setPosition();
  clearTimeout(timerMenu);
  hideMenuItems();

  MM_showHideLayers(name,'','show');
  while (name.indexOf("_")!=-1) {
	name = name.substring(0, name.lastIndexOf("_"));
    MM_showHideLayers(name,'','show');
  }
}

function fWriteLayers() {
  for (var i=0; i<arMenu.length; i++) {
	writeMenu('menu_'+i, arMenu[i])
  }
}

function writeMenu(name, arr) {
  document.write("<div id='"+name+"' style='position:absolute; left:0px; top:0px; width:"
   +arr[3]+"px; z-index:1; visibility: hidden' onMouseOver=\"clearTimeout(timerMenu);\" onMouseOut=\"hideMenu();\">"); 
  document.write("<table width='100%' border=0 cellspacing=0 cellpadding=0"
   +((bgcolor_margin!="")?" bgcolor='"+bgcolor_margin+"'":"")+"><tr><td>"); 
  document.write("<table width='100%' border=0 cellspacing="+cell_spacing+" cellpadding="+cell_padding+">");
  for (var j=0;j<arr[0].length;j++) {
    document.write("<tr>");
    document.write("<td "+((bgcolor_cell!="")?" bgcolor='"+bgcolor_cell+"'":"")
     +((background_cell!="")?" background='"+background_cell+"'":"")
	 +" onmouseover=\""+((bgcolor_hcell!="")?"this.style.backgroundColor='"+bgcolor_hcell+"';":"")
     +((background_hcell!="")?" this.style.background='url("+background_hcell+")';":"")
     +(((arr[0][j][2]) && (arr[0][j][2][0].length>0))?" showMenu('"+name+"_"+j+"');":" showMenu('"+name+"');")
	 +"\""
	 +" onmouseout=\""+((bgcolor_cell!="")?" this.style.backgroundColor='"+bgcolor_cell+"';":"")
   	 +((background_cell!="")?" this.style.background='url("+background_cell+")';":"")+"\""
   	 +" onclick=\"location.href='"+arr[0][j][1]+"'\""
	 +" style='cursor: hand; height:"+height+"px;'>"
	 +"<a href='"+ arr[0][j][1]+"' class='"+class_name+"'>"+arr[0][j][0]+"</a></td>");
    document.write("</tr>");
  }
  document.write("</table>");
  document.write("</td></tr></table>");
  document.write("</div>");
  for(var j=0;j<arr[0].length;j++) {
    if ((arr[0][j][2]) && (arr[0][j][2][0].length>0)) {
	  writeMenu(name+'_'+j, arr[0][j][2]);
	}
  }
}

function MM_setPosition() {
  for (var i=0; i<arMenu.length; i++)
    setPosition('menu_'+i, arMenu[i])
}

function setPosition(name, arr) {
  if (IEx) {
    document.all(name).style.left = x.offsetLeft+arr[1];
    document.all(name).style.top = x.offsetTop+arr[2];
  }
  else if (NS6) {
    str = "document.getElementById('"+name+"').style.left = document.getElementById('x').offsetLeft+arr[1]";
    eval(str);
    str = "document.getElementById('"+name+"').style.top = document.getElementById('x').offsetTop+arr[2]";		
    eval(str);
  }	
  for(var i=0;i<arr[0].length;i++)
    if ((arr[0][i][2]) && (arr[0][i][2].length>0))
      setPosition(name+'_'+i, arr[0][i][2]);
}

//function 

var IEx = (document.all)?1:0;
var NS4 = (document.layers)?1:0
var NS6 = (document.getElementById)?1:0

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}



/////

function ecatwindow()
{
//  window.open("http://www.masonryinstitute.org/ecat/1.htm","Console",'width=645,height=400,left=25,top=25');
//  	win = window.open("catalog/","mia_catalog",'width=10,height=10,left=17,top=17');
//  	win.focus();
}