Writing If statement in XML Publisher: An example

Consider there is a field which will display negative and positive amount while the XML report is rendered. Now we have to insert a condition to make it to display Zero, when the amount is a negative value.

Before inserting the If condition to cater the above requirement:
<br /><?xdoxslt:set_variable($_XDOCTX, ’TotalVar’, fld_PRIOR_BALANCE)?><?xdoxslt:get_variable($_XDOCTX, 'TotalVar') + sum(fld_ITEM_AMT)?> <br />

After inserting the If condition:
<br /><?xdoxslt:set_variable($_XDOCTX, ’TotalVar’, fld_PRIOR_BALANCE)?><?xdoxslt:set_variable($_XDOCTX, ’TotalVar’,xdoxslt:get_variable($_XDOCTX, 'TotalVar') + sum(fld_ITEM_AMT))?>))?><?if:xdoxslt:get_variable($_XDOCTX, 'TotalVar')<0?>0<?end if?> <br />

Try to avoid spaces while writing the code. Main concepts to understand here is the Get_Variable and Set_Variable.