[Help] to make some basic changes in a script

var DOH, thisDOH;
DOH = document.evaluate("//a[@href='?a=c&cID=1234']", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
thisDOH = DOH.snapshotItem(0);

if(thisDOH.innerHTML=="section_name") {

Code (markup):

this a script for some forums sections
i have no idea a about .js
1234 c&cID=1234']"this are forum section ID
="section_name" forum section name
i dont want to have a script for each forum section i change the id and name and the script work for any section but i must have one script for each section

any way to do this whit one script only ?

-thx