var str_arr=new Array();
var l=0;
function div_expand(val)
{
	if(l==1)
	{
		var last=str_arr[str_arr.length-1];
		str_arr.pop(last);
		document.getElementById("div_"+last).style.display='none';	
		document.getElementById("main_"+last).className='leftpanel_list';

		if(last==val)
		{
			l=0;
		}
		else
		{
			str_arr.push(val);
			document.getElementById("div_"+val).style.display='';
			document.getElementById("main_"+val).className='lt_main_bg';
			l=1;	
		}
	}
	else
	{
		str_arr.push(val);
		document.getElementById("div_"+val).style.display='';
		document.getElementById("main_"+val).className='lt_main_bg';
		l=1;	
	}
}
function leftMouseOver(val,cat)
{
	if(cat==0)
		document.getElementById("main_"+val).className='lt_main_over_bg';
	else
		document.getElementById("sub_"+val).className='lt_sub_over_bg';
}