var numberofitems = 21;
var questions = new Array(numberofitems);
function openTip(tipNum) {
var randFile; 
 if (tipNum==null) {
  
  randFile="/W3Browse/tips/tip"+Math.ceil(Math.random()*numberofitems-1)+".html";
 } else {
  randFile="/W3Browse/tips/tip"+tipNum+".html";
 }
 var myWin=window.open(randFile,"HotTip","scrollbars=yes,resizeable=yes,width=350,height=500");myWin.focus();return false; 
}

questions[0] = "Do you know how to query a <u>list</u> of objects or coordinates? <a href='javascript:void(openTip(1))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[1] = "Do you know how to plot Browse results? <a href='javascript:void(openTip(2))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[2] = "Do you know how to cross-correlate results against another table? <a href='javascript:void(openTip(3))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[3] = "Do you know how to cross-correlate two tables? <a href='javascript:void(openTip(4))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[4] = "Do you know how to get data products? <a href='javascript:void(openTip(5))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[5] = "Do you know how to see all the columns for a row in the results? <a href='javascript:void(openTip(6))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[6] = "Do you know how to find all x-ray observations available for an object? <a href='javascript:void(openTip(7))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[7] = "Do you know how to find observations of an object during a particular time period? <a href='javascript:void(openTip(8))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[8] = "Do you know how to get query results in a plain text table? <a href='javascript:void(openTip(9))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[9] = "Do you know how to get all rows of a table without doing a search? <a href='javascript:void(openTip(10))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[10] = "Do you know how to download an entire table? <a href='javascript:void(openTip(11))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[11] = "Do you know how to choose individual columns to be displayed? <a href='javascript:void(openTip(12))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[12] = "Do you know how to search by keyword in abstracts? <a href='javascript:void(openTip(13))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[13] = "Do you know how to set up a table cross-correlation? <a href='javascript:void(openTip(14))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[14] = "Do you know how to estimate the number of random matches in a cross-correlation? <a href='javascript:void(openTip(15))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[15] = "Do you know how to store a query in a local file for later use ? <a href='javascript:void(openTip(16))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[16] = "Do you know how to generate a script of commands to retrieve data products? <a href='javascript:void(openTip(17))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[17] = "Do you know how to plot a source location within the Chandra ACIS or HRC Field of View? <a href='javascript:void(openTip(18))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[18] = "Do you know the all the data tables currently searchable through Browse? <a href='javascript:void(openTip(19))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[19] = "Do you know what the naming conventions are for HEASARC table parameters? <a href='javascript:void(openTip(20))'>Learn more on this topic</a> or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";
questions[20] = "Wonder if your favorite source has been observed, or if new data for it are in the archive?  <a href='javascript:void(openTip(21))'>Get Notified</a>!  or <a href='/W3Browse/w3btipsarchive.html'>See all tips</a>";