dom = (document.getElementById)? true : false;
nn4 = (document.layers)? true : false;
ie4 = (!dom && document.all)? true : false;

var occupied_header = new Array();
var occupied_menu = new Array();

function preload(i) {
  img = new Image;
  img.src = i;
}
for (i=1; i<=8; i++) 
  preload ("/i/main_menu/" + i + "s.gif");

for(i=1;i<=8;i++) {
 occupied_header[i] = 0;
 occupied_menu[i] = 0; 
}
function n_GetX(El) {
	var X = 90;
	do { X += El.offsetLeft } while ((El = El.offsetParent) != null);
	return X;
}
function n_GetY(El) {
	var Y = 0;
	do { Y += El.offsetTop } while ((El = El.offsetParent) != null);
	return Y;
}
function CreateLayer(text, id, t, l,m) {
  if (dom && !document.all) {
        var strng="<div id=sub" + id + " style=\"position:absolute;top:" + t + ";left:" + l + ";visibility:hidden;z-index:1;\" onmouseover=\"occupied_menu[" + id + "]=1;\" onmouseout=\"Turn('" + id + "',0);occupied_menu[" + id + "]=0;\">" + text + "</div>";
        document.write(strng);
  } else {
    if(document.layers) {
      var str="<LAYER ID=sub" + id + " TOP=" + t + " LEFT=" + l + " onmouseover=\"occupied_menu[" + id + "]=1;\" onmouseout=\"Turn('" + id + "',0);occupied_menu[" + id + "]=0;\" VISIBILITY=hide Z-INDEX=2 bgcolor=\"#FFFFFF\">" + text + "</LAYER>";
      document.write(str);
    } else 
	  if(document.all) {
        var strng="<div id=sub" + id + " style=\"position:absolute;top:" + t + ";left:" + l + ";visibility:hidden;z-index:1;\" onmouseover=\"occupied_menu[" + id + "]=1;\" onmouseout=\"Turn('" + id + "',0);occupied_menu[" + id + "]=0;\">" + text + "</div>";
        document.write(strng);
      }
   }
 }
function Turn(id, mode) {
 if(document.layers || document.all || dom) {
  if(mode)
   eval("setTimeout(\"On(" + id + ");\",100)");
  else
   eval("setTimeout(\"Off(" + id + ");\",100)");
 }
}
function On(id){
  if(occupied_header[id]) {
  document.images["m"+id].src = "/i/main_menu/" + id + "s.gif";
  if (dom && !document.all) {
    LeftCoord = n_GetX(document.images["m"+id]);
    document.getElementById("sub" +id).style.left = LeftCoord;
    document.getElementById("sub" + id).style.visibility = 'visible';
  } else {
    if(document.all) {
      LeftCoord = n_GetX(document.images["m"+id]);
      document.all["sub" +id].style.left = LeftCoord;
      document.all["sub" + id].style.visibility = 'visible';
    } else 
	  if(document.layers) {
        LeftCoord = document.images["m"+id].x;
        eval('document.layers["sub" +id].left = LeftCoord');    
        eval("document.layers['sub" + id + "']").visibility = "show";
      }    
  }
  }
}
function Off(id){
  if(!occupied_menu[id] && !occupied_header[id]) {
   document.images["m"+id].src = "/i/main_menu/" + id + ".gif";
  if (dom && !document.all) {
      document.getElementById("sub" + id).style.visibility = 'hidden';
  } else {
    if(document.all) {
      eval("sub" + id).style.visibility = 'hidden';
    } else if(document.layers) {
        eval("document.layers['sub" + id + "']").visibility = "hide";
      }    
  }
  }
}
function fieldError(elem, errMsg) {
	if (elem.type == "textfield" || elem.type == "textarea") {
		elem.select();
	}
	elem.focus();
	alert(errMsg);
}
function check_fields() {
	var frm = document.lost;
//Email must be valid
	if (frm.email.value.match(/^[a-zA-Z0-9_\.\-\/]+@[a-zA-Z0-9_\.\-]+\.[a-zA-Z]{2,4}$/) == null) {
    	fieldError(frm.email, "Please enter a valid email address.");
    	return false;
     }
return true;
}