var Utils = {

	getCenter:function(options)
	{
		var clientWidth = screen.availWidth;
		var clientHeight = screen.availHeight;

		var width = options.width ? options.width : 850, height = options.height ? options.height : 600;
		var left = (clientWidth-width)/2, top = (clientHeight-height)/2;
		return {left:left, top:top};
	},
	
	open:function(options)
	{
		var center = Utils.getCenter(options);
		var win = {width:options.width ? options.width : 850, height:options.height ? options.height : 600};
		window.open(options.url, '_blank', 'width='+win.width+',height='+win.height+',scrollbars=yes,status=no,location=no,resizable=no,top='+center.top+', left='+center.left);
	}
	
};