function show(name, w, h)
{ 
	var url = "";
	var name = 'win'+name;
	var w_add = 50;
	var h_add = 60;
	if(w!=0)
	{	w += w_add;}
	else
	{	w = 600 + w_add;}
	if(h!=0)
	{	h += h_add;}
	else
	{	h = 600 + h_add;}
		
	var l = window.screen.availWidth/2 - w/2;
	var t = window.screen.availHeight/2 - h/2;
	window.open( url, name, "top="+t+"px,left="+l+"px,width="+w+"px,height="+h+"px,resizeable=yes,toolbar=no,location=no,status=no,menubar=no,scrollbars=yes");
}