/*Function for displaying child menu items.*/
	function expand(row,haschild,parent)
	{
		var tr = row;
		var pnode = parent;
		var d = tr.getElementsByTagName("div").item(0);
		
		d.className = "menuHover";
					
		if (pnode=='menu')
		{
			tr.className = "menuHoverSml";
		}
		else
		{
			tr.className = "menuHover";
		}
					
		if (haschild)
		{
			var td = tr.getElementsByTagName("td").item(1);
			var img = tr.getElementsByTagName("img").item(0);
					
			toc1 = new Image();						
			toc1.src =  "../Images/white_arrow.GIF";		
											
			td.className = "rightArrow";
			img.src = toc1.src;													}	
	}
		

    /*Function for hiding child menu items.*/		
	function collapse(row,haschild,parent)
	{
		var tr = row;
		var pnode = parent;
		var d = tr.getElementsByTagName("div").item(0);

		d.className = "menuNormal";
					
		if (pnode=='menu')
		{
			tr.className = "menuSmall";									
		}
		else
		{	
			tr.className = "menuNormal";
		}
				
		if (haschild)
		{						
			var td = tr.getElementsByTagName("td").item(1);
			var img = tr.getElementsByTagName("img").item(0);
							
			toc1 = new Image();						
			toc1.src =  "../Images/grey_arrow.gif";				
							
			td.className = "centerArrow";
			img.src = toc1.src;																				
		}			
	}	
	

    /*Function for replacing top nav section into active image.*/					
	function img_on(position) 
	{
		var pos1 = parseInt(position) - 1;
		var pos2 = position;
		var pos3 = parseInt(position) + 1;
					
		var id1 = 'TopNav' + pos1;
		var id2 = 'TopNav' + pos2;
		var id3 = 'TopNav' + pos3;
					
		var img1 = document.getElementById(id1);	
		var img2 = document.getElementById(id2);	
		var img3 = document.getElementById(id3);
			
		toc1 = new Image();						
		toc1.src =  nav_divider_on;
					
		toc2 = new Image();						
		toc2.src =  nav_image_on[pos2];													
		toc3 = new Image();						
		toc3.src =  nav_divider_on;
					
		img1.src = toc1.src;
		img2.src = toc2.src;
		img3.src = toc3.src;
	}
			
	/*Function for replacing top nav section into default image.*/					
	function img_off(position, onPosition) 
	{
		var pos1 = parseInt(position) - 1;
		var pos2 = position;
		var pos3 = parseInt(position)  + 1;
		
		var onPos1 = parseInt(onPosition) - 1;
		var onPos2 = parseInt(onPosition) - 2;
		var onPos3 = parseInt(onPosition) + 1;
							
		var id1 = 'TopNav' + pos1;
		var id2 = 'TopNav' + pos2;
		var id3 = 'TopNav' + pos3;
					
		var img1 = document.getElementById(id1);	
		var img2 = document.getElementById(id2);	
		var img3 = document.getElementById(id3);
								
		toc1 = new Image();						
		if (position == onPosition){
			toc1.src =  nav_divider_on;			
		}
		else if (pos1 == onPos3){
			toc1.src =  nav_divider_on;			
		}
		else{
			toc1.src =  nav_divider_off;
		}
					
		toc2 = new Image();
		if (position == onPosition){
			toc2.src =  nav_image_on[pos2];
		}
		else{
			toc2.src =  nav_image_off[pos2];			
		}
					
		toc3 = new Image();						
		if (position == onPosition){
			toc3.src =  nav_divider_on;
		}
		else if (pos3 == onPos1){
			toc3.src =  nav_divider_on;			
		}
		else{
			toc3.src =  nav_divider_off;
		}
					
		img1.src = toc1.src;
		img2.src = toc2.src;
		img3.src = toc3.src;					
	}