var win = null;
function CenterWindow(mypage,myname,w,h,scroll){
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
	win = window.open(mypage,myname,settings).focus();
}


<!-- close window -->

function closekiosk(){
	window.close()
	}



<!-- print window -->

function screenprint(){
	window.print()
	}