iam using libxml for creating and editng my xml pages .
now i have problem with conditional satement.
is there any conditional statements in xml.
if it is how can i use if statement

actually my requirement is
if i pass a=500 to my xml file
it will check the conditions like this
if (a>1 && a<250)
a=1;
else if(a>250 && a<=500)
a=0;
how can i write this in xml file
and i want to return tht "a" value to my c program
thank u in adavancee
abhi

Presumably you have posted this on an XSLT forum because you are using XSLT, but you seem very confused. When you say "xml file" do you mean "XSLT stylesheet"? XSLT allows parameters to be passed using xsl:param, and it allows conditional instructions using xsl:if. You'll find information about these in any XSLT textbook.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference