function toggle(id,p){ 
	var myChild = document.getElementById(id);
	if(myChild.style.display!='block'){
		myChild.style.display='block';
		document.getElementById(p).className='folderOpen';
	}else{
		myChild.style.display='none';
		document.getElementById(p).className='folder';
	}
} 
function cell_over(cell, classname) {
    if (document.all || document.getElementById) {
        cell.classBackup = cell.className;
        cell.className   = classname;
    }
}
function cell_out(cell)
{
    if (document.all || document.getElementById) {
        cell.className   = cell.classBackup;
    }
}