function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()')
		eval(imgObj+'.src = "'+imgSrc+'"')
	}
}
function changeImage(layer,imgName,imgObj) {
	if (document.images) {
		if (document.layers && layer!=null) eval('document.'+layer+'.document.images["'+imgName+'"].src = '+imgObj+'.src')
		else document.images[imgName].src = eval(imgObj+".src")
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; 
  
  for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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;
}

// for centering sub-window on screen
var screenWidth = screen.availWidth;
var screenHeight = screen.availHeight;
var subWinWd = 620;	// width of sub-window
var subWinHt = 550;	// height of sub-window
var subWinTop = Math.round((screenHeight-subWinHt)/2)-40;
var subWinLeft = Math.round((screenWidth-subWinWd)/2);

// opens sub-window 
var newWin = null;
function getSubWin(url) {
 	if (newWin && !newWin.closed) newWin.focus();
	newWin = window.open(url, "subwin", "menubar,resizable,scrollbars,height="+subWinHt+",width="+subWinWd+",top="+subWinTop+",left="+subWinLeft);
}
function OpenNewWin(url,xSize,ySize) {
 	window.open(url, "_blank", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,height="+ySize+",width="+xSize+",top="+(Math.round((screenHeight-ySize)/2)-40)+",left="+(Math.round((screenWidth-xSize)/2)));
}
// close window when this page unloads 
function closeWin() {
	if (newWin && !newWin.closed) newWin.close();
}