/************************************************************************************************************
(C) www.dhtmlgoodies.com, October 2005

This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	

Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.

Updated:

March, 14th, 2006 - Create new tabs dynamically
March, 15th, 2006 - Dynamically delete a tab

Thank you!

www.dhtmlgoodies.com
Alf Magne Kalleland

************************************************************************************************************/		
var textPadding = 3; // Padding at the left of tab text - bigger value gives you wider tabs
var strictDocType = true; 
var tabView_maxNumberOfTabs = 6;	// Maximum number of tabs

/* Don't change anything below here */
var dhtmlgoodies_tabObj;
var activeTabIndex = -1;
var MSIE = navigator.userAgent.indexOf('MSIE')>=0?true:false;
var navigatorVersion = navigator.appVersion.replace(/.*?MSIE (\d\.\d).*/g,'$1')/1;
var ajaxObjects = new Array();
var tabView_countTabs = 0;
var tabViewHeight;

function setPadding(obj,padding){
var span = obj.getElementsByTagName('SPAN')[0];
span.style.paddingLeft = padding + 'px';	
span.style.paddingRight = padding + 'px';	
}
function showTab(tabIndex)
{
if(!document.getElementById('tabView' + tabIndex))return;
if(activeTabIndex>=0){
if(activeTabIndex==tabIndex)return;
var obj = document.getElementById('tabTab'+activeTabIndex);
obj.className='tabInactive';
var img = obj.getElementsByTagName('IMG')[0];
img.src = 'images/tab_right_inactive.gif';
document.getElementById('tabView' + activeTabIndex).style.display='none';
}

var thisObj = document.getElementById('tabTab'+tabIndex);		
thisObj.className='tabActive';
var img = thisObj.getElementsByTagName('IMG')[0];
img.src = 'images/tab_right_active.gif';

document.getElementById('tabView' + tabIndex).style.display='block';
activeTabIndex = tabIndex;


var parentObj = thisObj.parentNode;
var aTab = parentObj.getElementsByTagName('DIV')[0];
countObjects = 0;
var startPos = 2;
var previousObjectActive = false;
while(aTab){
if(aTab.tagName=='DIV'){
if(previousObjectActive){
previousObjectActive = false;
startPos-=2;
}
if(aTab==thisObj){
startPos-=2;
previousObjectActive=true;
setPadding(aTab,textPadding+1);
}else{
setPadding(aTab,textPadding);
}

aTab.style.left = startPos + 'px';
countObjects++;
startPos+=2;
}			
aTab = aTab.nextSibling;
}

return;
}

function tabClick()
{
showTab(this.id.replace(/[^\d]/g,''));

}

function rolloverTab()
{
if(this.className.indexOf('tabInactive')>=0){
this.className='inactiveTabOver';
var img = this.getElementsByTagName('IMG')[0];
img.src = 'images/tab_right_over.gif';
}

}
function rolloutTab()
{
if(this.className ==  'inactiveTabOver'){
this.className='tabInactive';
var img = this.getElementsByTagName('IMG')[0];
img.src = 'images/tab_right_inactive.gif';
}

}

function initTabs(tabTitles,activeTab,width,height,additionalTab)
{
if(!additionalTab || additionalTab=='undefined'){			
dhtmlgoodies_tabObj = document.getElementById('tabView');
width = width + '';
if(width.indexOf('%')<0)width= width + 'px';
dhtmlgoodies_tabObj.style.width = width;
	
height = height + '';
if(height.length>0){
if(height.indexOf('%')<0)height= height + 'px';
dhtmlgoodies_tabObj.style.height = height;
}


tabViewHeight = height;

var tabDiv = document.createElement('DIV');		
var firstDiv = dhtmlgoodies_tabObj.getElementsByTagName('DIV')[0];	

dhtmlgoodies_tabObj.insertBefore(tabDiv,firstDiv);	
tabDiv.className = 'tabPane';

tabView_countTabs = 0;
}else{
var tabDiv = dhtmlgoodies_tabObj.getElementsByTagName('DIV')[0];
var firstDiv = dhtmlgoodies_tabObj.getElementsByTagName('DIV')[1];
height = tabViewHeight;
activeTab = tabView_countTabs;			
}



for(var no=0;no<tabTitles.length;no++){
var aTab = document.createElement('DIV');
aTab.id = 'tabTab' + (no + tabView_countTabs);
aTab.onmouseover = rolloverTab;
aTab.onmouseout = rolloutTab;
aTab.onclick = tabClick;
aTab.className='tabInactive';
tabDiv.appendChild(aTab);
var span = document.createElement('SPAN');
span.innerHTML = tabTitles[no];
aTab.appendChild(span);

var img = document.createElement('IMG');
img.valign = 'bottom';
img.src = 'images/tab_right_inactive.gif';
// IE5.X FIX
// if((navigatorVersion && navigatorVersion<6) || (MSIE && !strictDocType)){
if((navigatorVersion && navigatorVersion<6) || (MSIE)){
img.style.styleFloat = 'none';
img.style.position = 'relative';	
img.style.top = '4px'
span.style.paddingTop = '4px';
aTab.style.cursor = 'hand';
}	// End IE5.x FIX
aTab.appendChild(img);
}

var tabs = dhtmlgoodies_tabObj.getElementsByTagName('DIV');
var divCounter = 0;
for(var no=0;no<tabs.length;no++){
if(tabs[no].className=='aTab'){
if(height.length>0)tabs[no].style.height = height;
tabs[no].style.display='none';
tabs[no].id = 'tabView' + divCounter;
divCounter++;
}			
}	
tabView_countTabs = tabView_countTabs + tabTitles.length;	
showTab(activeTab);

return activeTab;
}	

function showAjaxTabContent(ajaxIndex,tabId)
{
document.getElementById('tabView'+tabId).innerHTML = ajaxObjects[ajaxIndex].response;		
}

function resetTabIds()
{
var divs = dhtmlgoodies_tabObj.getElementsByTagName('DIV');
var tabTitleCounter = 0;
var tabContentCounter = 0;

for(var no=0;no<divs.length;no++){
if(divs[no].className=='aTab'){
divs[no].id = 'tabView' + tabTitleCounter;
tabTitleCounter++;
}
if(divs[no].id.indexOf('tabTab')>=0){
divs[no].id = 'tabTab' + tabContentCounter;	
tabContentCounter++;
}	


}

tabView_countTabs = tabContentCounter;
}


function createNewTab(tabTitle,tabContent,tabContentUrl)
{
if(tabView_countTabs>=tabView_maxNumberOfTabs)return;	// Maximum number of tabs reached - return
var div = document.createElement('DIV');
div.className = 'aTab';
dhtmlgoodies_tabObj.appendChild(div);		
var tabId = initTabs(Array(tabTitle),0,'','',true);
if(tabContent)div.innerHTML = tabContent;
if(tabContentUrl){

var ajaxIndex = ajaxObjects.length;
ajaxObjects[ajaxIndex] = new sack();
ajaxObjects[ajaxIndex].requestFile = tabContentUrl;	// Specifying which file to get
ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxTabContent(ajaxIndex,tabId); };	// Specify function that will be executed after file has been found
ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function	

}

}

function getTabIndexByTitle(tabTitle)
{
var divs = dhtmlgoodies_tabObj.getElementsByTagName('DIV');
for(var no=0;no<divs.length;no++){
if(divs[no].id.indexOf('tabTab')>=0){
var span = divs[no].getElementsByTagName('SPAN')[0];
if(span.innerHTML == tabTitle)return divs[no].id.replace(/[^0-9]/g,'')/1;		
}
}

return -1;

}


function deleteTab(tabLabel,tabIndex)
{

if(tabLabel){
var index = getTabIndexByTitle(tabLabel);
if(index>=0){
deleteTab(false,index);
}

}else if(tabIndex>=0){
if(document.getElementById('tabTab' + tabIndex)){
var obj = document.getElementById('tabTab' + tabIndex);
obj.parentNode.removeChild(obj);
var obj2 = document.getElementById('tabView' + tabIndex);
obj2.parentNode.removeChild(obj2);
resetTabIds();
activeTabIndex=-1;
showTab(0);
}			
}





}