function toggleWork(showDiv,hideDiv)
{

	document.getElementById(showDiv).style.display='block';
	var onButton=showDiv+'_button';
	var offButton=hideDiv+'_button';
	//alert (onButton);
	document.getElementById(onButton).className=showDiv+'_on';
	document.getElementById(hideDiv).style.display='none';
	document.getElementById(offButton).className=hideDiv+'_off';
}