but when I embed the Javascript to my website, I receive the red error "First column must contain date, or date and time."
/javascript" src="//ajax.googleap
is.com/ajax/static/modules/gviz/1.0/chart.js">
{"dataSourceUrl":"//docs.googl
e.com/spreadsheet/tq?key=0Au4HBfGndfFmdDdBc2xETmdSNElHaThFOGlTOVNpaVE&transpose=0&headers=1&range=B1%3AC11&gid=0&pub=1","options":{"displayAnnotations":true,"vAxes":[{"useFormatFromData":true,"viewWindowMode":"pretty","viewWindow":{}},{"useFormatFromData":true,"viewWindowMode":"pretty","viewWindow":{}}],"booleanRole":"certainty","displayRangeSelector":false,"displayZoomButtons":false,"wmode":"opaque","hAxis":{"useFormatFromData":true},"width":1192,"height":483},"state":{},"chartType":"AnnotatedTimeLine","chartName":"Chart 1"}
</script>
Any ideas how to fix that?
Thank you,
Nikolay