function pageWidth() {return window.innerWidth != null ? window.innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null;}
function pageHeight() {return  window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ?  document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null;}
function posLeft() {return typeof window.pageXOffset != 'undefined' ? window.pageXOffset :document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0;}
function posTop() {return typeof window.pageYOffset != 'undefined' ?  window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0;}
function posRight() {return posLeft()+pageWidth();} function posBottom() {return posTop()+pageHeight();}

function viewFile (thisItem) {
	var width = pageWidth();
	var height = pageHeight();
	var wide = 520;
	var high = 675;
	var newx = (width / 2) - (wide / 2);
	var newy = (height / 2) - (high / 2);
	window.open (thisItem,'miniWindow','width='+wide+',height='+high+',toolbar=0,scrollbars=1,status=1,screenX='+newx+',screenY='+newy+',left='+newx+',top='+newy)
	}