function openW(file,wW,wH,scr){
	
	var posX = (screen.width-wW) / 2; 
	var posY = (screen.height-wH) / 2; 

	var myWin = window.open(file, 'varW', 'Height='+wH+'px, Width='+wW+'px,resizable=no,top='+posY+',left='+posX+',scrollbars='+scr)
	myWin.focus();
	
	}