function popUp(URL) {

	ah = (screen.availHeight/2) - (400/2);
	aw = (screen.availWidth/2) - (500/2);
	
	page = window.open(URL, "moviepopup", 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=420,left = '+ aw +',top = ' + ah + '');
	page.focus();
}

function popUpImage(URL) {

	ah = (screen.availHeight/2) - (490/2);
	aw = (screen.availWidth/2) - (650/2);

	page = window.open(URL, "imagepopup", 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=650,height=490,left = '+ aw +',top = ' + ah + '');
	page.focus();
}

function popUpInfo(URL) {

	ah = (screen.availHeight/2) - (800/2);
	aw = (screen.availWidth/2) - (600/2);

	page = window.open(URL, "imagepopup", 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=800,height=600,left = '+ aw +',top = ' + ah + '');
	page.focus();
}