function sezamo(website,windowWidth,windowHeight) {
	var leftdist = (window.screen.availWidth-windowWidth) / 2;
	var topdist = (window.screen.availHeight-windowHeight) / 2;
	window.open(website,'','width=' + windowWidth + ',height=' + windowHeight + ',left=' + leftdist + ',top=' + topdist + ',scrollbars=1');

}