//JS functions in a php file 
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// form tab             
// create a parent div, which will contain the tabs (child divs).
// Call this function to show one tab and hide all oters.       
//-------------------
function doTab($pDivId, $showDiv, $tabClass )
//-------------------
{
//alert ("top of doTab") 

// pDivId is the ID of the div which is the immediate parent to the tab divs
// showDiv is the ID of the child div, we want to show
// tabClass is the class of all div in this set of tabs

//  all other divs, that are children of pDiv, in tabClass are to be hidden

var pDivId = $pDivId;
var showDiv = $showDiv;
var tabClass = $tabClass;
var pDivNode = document.getElementById(pDivId);


// get list of ALL child divs inside pDiv
var divList = pDivNode.getElementsByTagName("div");

var i = 0;
var thisDiv;
var thisDivId;
var divFound = 0;

for (i = 0; i < divList.length; i++)
{
 thisDiv = divList[i];
 thisDivId = thisDiv.id;
 thisDivClass= thisDiv.className;

//alert ("className=" + thisDivClass);
 
//alert ("for i=" + i + " divId=" + thisDivId);

 if ( thisDivClass == tabClass )
 { thisDiv.style.display = "none";
 }

 if ( thisDivId == showDiv && thisDivClass == tabClass && divFound == 0 )
 {
  divFound = 1;
//  alert (thisDivId + " == " + showDiv + " i=" + i); 
  thisDiv.style.display = "";
 } 

} //end for
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} //end doTab