function openNewWindow(URLtoOpen, windowName, windowFeatures) {
	newWindow=window.open(URLtoOpen, windowName, windowFeatures);
	}

function displayvideo(videotoload) {
	var centerWidth = (window.screen.width - 500) / 2;
    var centerHeight = (window.screen.height - 321) / 2;
	vidstring="dspvid.php?vid="+videotoload;
	openNewWindow(vidstring,"ExampleVideo",'resizable=0,width=' + 500 + 
        ',height=' + 321 + 
        ',left=' + centerWidth + 
        ',top=' + centerHeight);
	}