This function will produce a random number between val1 and val2 inclusive

<xt:random from="val1" to="val2" />

Multiple calls on one page
using the same input values
will produce the same output.
<xt:random from="0" to="10000"/>
1st call 5819
2nd call 5819

To cure this add another operator/argument pair I'm using x
<xt:random from="0" to="10000" x="1"/>
5035
Change the value of x to change the output.
<xt:random from="0" to="10000" x="2"/>
7856

The value of x can be almost anything
<xt:random from="0" to="10000" x="hello"/>
3933