var timeout	= 0;
var closetimer	= 0;
var ddCollectionitem	= 0;
var current=0;

// open hidden layer
function mCollectionItemOpen(id,curr)
{	
	// cancel close timer
	mCollectinItemCancelclosetime();

	// close old layer
	
	if(ddCollectionitem) ddCollectionitem.style.display = 'none';
	if(current)  current.style.display='block';

	// get new layer and show it
	ddCollectionitem = document.getElementById(id);
	current= document.getElementById(curr);
	ddCollectionitem.style.display = 'block';
	current.style.display='none';

}

// close showed layer
function mCollectinItemClose()
{
	if(ddCollectionitem) ddCollectionitem.style.display = 'none';
	if(current)  current.style.display='block';
}

// go close timer
function mCollectinItemClosetime()
{
	closetimer = window.setTimeout(mCollectinItemClose, 0);
}

// cancel close timer
function mCollectinItemCancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

function toogletab(currMenu) 
 {

   if(document.getElementById('tab_01')!=null){
   	document.getElementById('tab_01').style.display="none";
   }
   if(document.getElementById('tab_02')!=null){
  	 document.getElementById('tab_02').style.display="none";
   }
   if(document.getElementById('tab_03')!=null){
    document.getElementById('tab_03').style.display="none";
   }
   if(document.getElementById('tab_04')!=null){
  	document.getElementById('tab_04').style.display="none";
   }
  document.getElementById(currMenu).style.display="block";

}