function changePreview(tabNumber, tablength, taberror) {
      var storeForm = document.getElementById("storeLoc");
      for (i = 1; i <= tablength; i++) {
        document.getElementById('searchType' + i).style.display = 'none';
      }
      document.getElementById('searchType' + tabNumber).style.display = '';
	  
	  if (taberror) {
	  
		document.getElementById('errortext').innerHTML = "";
		document.getElementById('errordiv').style.display = 'none';
	  }
	  
	  ans = document.getElementById('tabpopStory').getElementsByTagName('li');
      for(i = 0; i < ans.length; i++) {
        if (ans[i].className == 'tabpopHead') {
		  ans[i].className = '';
		  var tabName = ans[i].innerHTML;
		  var tabNums = i+1;
		  ans[i].innerHTML = "<a href=\"#\" onclick=\"changePreview('"+tabNums+"','"+tablength+"', "+taberror+"); return false;\">"+tabName+"</a>";
      	}
	  }

	if (document.getElementById('tab' + tabNumber).textContent) { 
		var tabfocus = document.getElementById('tab' + tabNumber).textContent;
	} else if (document.getElementById('tab' + tabNumber).innerText) {
		var tabfocus = document.getElementById('tab' + tabNumber).innerText;
	}
	
	
	document.getElementById('tab' + tabNumber).innerHTML = tabfocus;
	document.getElementById('tab' + tabNumber).className = 'tabpopHead';

	 
	  if (taberror) {
	  	storeForm.tabnum.value = tabNumber;
	  }
    }