function showHide(elementname)
{
        if (document.all)
        {
                if (document.all(elementname).style.display != 'none')
                {
                        document.all(elementname).style.display = 'none';
                        return 'hidden';
                } else {
                        document.all(elementname).style.display = '';
                        return 'visible';
                        
                }
        } else {
                if (document.getElementById(elementname).style.display != 'none')
                {
                        document.getElementById(elementname).style.display = 'none';
                        return 'hidden';
                } else {
                        document.getElementById(elementname).style.display = '';
                        return 'visible';
                }
        }
} 

function show(elementname)
{
        if (document.all)
        {
			document.all(elementname).style.display = '';
         	return 'visible';
        } else {
			document.getElementById(elementname).style.display = '';
			return 'visible';
        }
} 

function hide(elementname)
{
        if (document.all)
        {
        	// IE6 chooses this option. 
			document.all(elementname).style.display = 'none';
        } else {
			document.getElementById(elementname).style.display = 'none';
        }
} 

function setStyle(elementname, newstyle) {
	if (document.all)
	{
		document.all(elementname).className = newstyle; 
	} else {
		document.getElementById(elementname).className = newstyle;
	}
}