function NewWindow (mypage, myname, w, h, scroll) {
  var x_position = screen.availWidth/2 - 350;
  var y_position = screen.availHeight/2 - 225;
  var winl = x_position;
  var wint = y_position;
  winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable=0'
  win = window.open(mypage, myname, winprops)
  if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}

function showDiv(num){
	hideAll(1,10);
	divID = "pop"+num;
	if (document.getElementById){
		document.getElementById(divID).style.display = "inline";
	}
	else if (document.layers){
		document.layers[divID].display = "inline";
	}
}

function hideDiv(divID){
    if (document.getElementById) {
        document.getElementById(divID).style.display = "none";
    }
    else if (document.layers){
        document.layers[divID].display = "none";
    }    
}

function hideAll(m,t) {
	var divID;
	for (var i = m; i <= t; i++) { 
        divID = 'pop' + i;
		if (document.getElementById){
		     if (document.getElementById(divID)){
		         document.getElementById(divID).style.display = 'none';
		     }
		 }
		 else if (document.layers){
		     if (document.layers[divID]){
		         document.layers[divID].display = 'none';
		     }
		 }
	}
}