var szelesseg = window.screen.width;
var xPosition = 0;

switch (szelesseg)
{
case 800:
  xPosition = 193;
  break;
case 1024:
  xPosition = 305;
  break;
case 1280:
  xPosition = 432;
  break;
}

<!--
	  var yPosition = 217;
         
	  //new ypSlideOutMenu("number menu", "slide position", left, top, width, height)
		new ypSlideOutMenu("menu1", "right", xPosition, yPosition, 145, 230)
		new ypSlideOutMenu("menu11", "right", xPosition + 145, yPosition + 1, 146, 160)
		new ypSlideOutMenu("menu12", "right", xPosition + 145, yPosition + 21, 146, 160)
		new ypSlideOutMenu("menu13", "right", xPosition + 145, yPosition + 41, 146, 160)
		new ypSlideOutMenu("menu14", "right", xPosition + 145, yPosition + 61, 146, 160)
		new ypSlideOutMenu("menu15", "right", xPosition + 145, yPosition + 81, 146, 160)
	//-->

// Courtesy of SimplytheBest.net - http://simplythebest.net/scripts/
<!--
function swapImgRestore() { 
  var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function preloadImages() { 
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}
function findObj(n, d) { 
  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=findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}
function swapImage() { 
  var i,j=0,x,a=swapImage.arguments; document.sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=findObj(a[i]))!=null){document.sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function showHideLayers() {
  var i,p,v,obj,args=showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=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; }
}
//-->