command to get chart

Question: I have a table web item displaying data...I would like to add a button to generate chart...is there any command url for this...

thanks

Answer:
if I use the following code, I lose the table but get the table data in chart..I would like to retain my table and show the table data in chart in the same template...

<A href="<SAP_BW_URL DATA_PROVIDER='DATAPROVIDER_1' item='table_data' cmd='reset_item' item_class='cl_rsr_www_item_chart' hidden='x'>">chart</A>
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