var thresholdY = 15; // in pixels; threshold for vertical repositioning of a layer
var ordinata_margin = 20; // to start the layer a bit above the mouse vertical coordinate
 
function popUpL1() {
   if(document.getElementById('L1').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L1",true); isActive=1; }
}

function popUpL2() {
   if(document.getElementById('L2').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L2",true); isActive=1; }
}

function popUpL3() {
   if(document.getElementById('L3').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L3",true); isActive=1; }
}

function popUpL4() {
   if(document.getElementById('L4').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L4",true); isActive=1; } 
}

function popUpL5() {
   if(document.getElementById('L5').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L5",true); isActive=1; }
}

function popUpL6() {
   if(document.getElementById('L6').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L6",true); isActive=1; }
}

function popUpL7() {
   if(document.getElementById('L7').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L7",true); isActive=1; }
}

function popUpL8() {
   if(document.getElementById('L8').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L8",true); isActive=1; }
}

function popUpL9() {
   if(document.getElementById('L9').style.visibility=='visible' && isActive==0) { shutdown(); } 
   else { shutdown(); popUp("L9",true); isActive=1; }
}

function moveLayers() {
setleft('L1',105);
settop('L1',150);   
setwidth('L1',150);
setleft('L2',105);
settop('L2',150);   
setwidth('L2',150);
setleft('L3',105);
settop('L3',150);   
setwidth('L3',150);
setleft('L4',105);
settop('L4',150);   
setwidth('L4',150);
setleft('L5',105);
settop('L5',150);   
setwidth('L5',150);
setleft('L6',105);
settop('L6',150);   
setwidth('L6',150);
setleft('L7',105);
settop('L7',150);   
setwidth('L7',150);
setleft('L8',105);
settop('L8',150);   
setwidth('L8',150);
setleft('L9',105);
settop('L9',150);   
setwidth('L9',150);
}

function shutdown() {
popUp('L1',false);
popUp('L2',false);
popUp('L3',false);
popUp('L4',false);
popUp('L5',false);
popUp('L6',false);
popUp('L7',false);
popUp('L8',false);
popUp('L9',false);
isActive=0;
}

//function delayedshutdown() {
//setTimeout("if (!isActive) shutdown()",1000);
//}

if (NS4) {
document.onmousedown = function() { shutdown(); }
} else { 
document.onclick = function() { shutdown(); }
}