function mDisplay(inum,isrc)
	{
	var el;
	var el2;
	if (document.layers) //NS4
		{
		el=document.layers[inum];
		el2=document.layers[isrc]

		if (el.display=='none')
			{
			el.display='inline';
			el2.src='images/minus_sign.jpg';
			}
		else if (el.display=='')
			{
			el.display='inline';
			el2.src='images/minus_sign.jpg';
			}
		else if (el.display=='inline')
			{
			el.display='none';
			el2.src='images/plus_sign.jpg';
			}		
		}
	else if (document.all) //IE4+
		{
		el=document.all.item(inum);
		el2=document.all.item(isrc);

		if (el.style.display=='none')
			{
			el.style.display='inline';
			el2.src='images/minus_sign.jpg';
			}
		else if (el.style.display=='')
			{
			el.style.display='inline';
			el2.src='images/minus_sign.jpg';
			}
		else if (el.style.display=='inline')
			{
			el.style.display='none';
			el2.src=el2 = 'images/plus_sign.jpg';
			}		
			
		}
	else if (document.getElementById) // IE5+, NS6+, Mozilla/Gecko, and any W3C DOM compliant browser 
		{
		el=document.getElementById(inum);
		el2=document.getElementById(isrc)

		if (el.style.display=='none')
			{
			el.style.display='inline';
			el2.src=el2 = 'images/minus_sign.jpg';
			}
		else if (el.style.display=='')
			{
			el.style.display='inline';
			el2.src=el2 = 'images/minus_sign.jpg';
			}
		else if (el.style.display=='inline')
			{
			el.style.display='none';
			el2.src=el2 = 'images/plus_sign.jpg';
			}		
		}
	}


	




function hideMenu()
	{
	var el
	if (window.document.layers)
		{
		document.layers['srDiv'].visibility='hide';	
		}
	else if (document.all)
		{
		document.all.item('srDiv').style.display='none';
		}
	else if (document.getElementById)
		{
		el=document.getElementById('srDiv');
		el.style.display='none';
		}
	}