// JavaScript Document
function playVid(filename){
	var w = 450, h = 400;
	
	if (document.all || document.layers) {
	   w = screen.availWidth;
	   h = screen.availHeight;
	}
	
	var popW = 450, popH = 400;
	
	var leftPos = (w-popW)/2, topPos = (h-popH)/2;
	
	vidwin = window.open(filename+'.php','playvid','width=' + popW + ',height=' + popH + ',top=' + topPos + ',left=' + leftPos + ',scrollbars = 1');
	vidwin.focus();
}