function tabselect(tab) {
  var tablist = $('tabProduct').getElementsByTagName('li');
  var nodes = $A(tablist);
  var lClassType = tab.className.substring(0, tab.className.indexOf('-') );

  nodes.each(function(node){
    if (node.id == tab.id) {
      tab.className=lClassType+'-selected';
		} else {
      node.className=lClassType+'-unselected';
		};
  });
}

function tabContentselect(tabContent) {
  var tabContentlist = $('tabContentProduct').getElementsByTagName('li');
  var nodes = $A(tabContentlist);

  nodes.each(function(node){
    if (node.id == tabContent.id) {
      tabContent.className='tabContent-selected';
		} else {
      node.className='tabContent-unselected';
		};
  });
}

function loadtabContent(tabContent, src) {
  if (tabContent.innerHTML=='' || tabContent.innerHTML=='<img alt="Please Wait" src="media/working.gif" style="vertical-align:-3px" /> Document is Loading...') {
    reloadtabContent(tabContent, src);
  }
}

function reloadtabContent(tabContent, src) {
  new Ajax.Updater(tabContent, src, {asynchronous:1, evalScripts:true, onLoading:function(request){tabContent.innerHTML='<img alt="Please Wait" src="media/working.gif" style="vertical-align:-3px" /> Document is Loading...'}})
}