var ns6=document.getElementById&&!document.all
var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var opened_R = "";
var opened_L = "";

function preOpenMenu(headerNumber)
{
	var headerToOpen;
	headerToOpen = "header_R" + headerNumber;
	document.all[headerToOpen].className = "sts_menuhead_over";
	content_id = "content_R" + headerNumber;
	objContent = document.all[content_id];
	if(typeof(objContent)=="object")
	{
		// if there is some thing to show - showing
		objContent.style.display="";
	}
	opened_R = headerNumber;
}

function handleClick(e)
{
	cur=ns6? e.target : event.srcElement
	clickedHeader = new String(cur.id);
	
	// for right menu
	
	if(clickedHeader.substr(0,8)=="header_R")
	{
		
		clicked_header_id = clickedHeader.substr(8,clickedHeader.length);
		if(opened_R=="")
		{
			// opening
			document.all[clickedHeader].className = "sts_menuhead_over";
			content_id = "content_R" + clicked_header_id;
			objContent = document.all[content_id];
			if(typeof(objContent)=="object")
			{
				// if there is some thing to show - showing
				objContent.style.display="";
			}
			opened_R = clicked_header_id;
		}
		else
		{
			// closing or re-opening
			if(opened_R==clicked_header_id)
			{
				// closing 
				document.all[clickedHeader].className = "sts_menuhead";
				content_id = "content_R" + clicked_header_id;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to hide - hiding
					objContent.style.display="none";
				}
				opened_R = "";
			}
			else
			{
				// re-opening
				
				// first closing open
				
				document.all["header_R"+opened_R].className = "sts_menuhead";
				content_id = "content_R" + opened_R;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to hide - hiding
					objContent.style.display="none";
				}
				
				// second opening
				
				document.all[clickedHeader].className = "sts_menuhead_over";
				content_id = "content_R" + clicked_header_id;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to show - showing
					objContent.style.display="";
				}
				opened_R = clicked_header_id;
			}
		}
	}
	
	// for left menu
	
	if(clickedHeader.substr(0,8)=="header_L")
	{
		
		clicked_header_id = clickedHeader.substr(8,clickedHeader.length);
		if(opened_L=="")
		{
			// opening
			document.all[clickedHeader].className = "sts_menuhead_over";
			content_id = "content_L" + clicked_header_id;
			objContent = document.all[content_id];
			if(typeof(objContent)=="object")
			{
				// if there is some thing to show - showing
				objContent.style.display="";
			}
			opened_L = clicked_header_id;
		}
		else
		{
			// closing or re-opening
			if(opened_L==clicked_header_id)
			{
				// closing 
				document.all[clickedHeader].className = "sts_menuhead";
				content_id = "content_L" + clicked_header_id;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to hide - hiding
					objContent.style.display="none";
				}
				opened_L = "";
			}
			else
			{
				// re-opening
				
				// first closing open
				
				document.all["header_L"+opened_L].className = "sts_menuhead";
				content_id = "content_L" + opened_L;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to hide - hiding
					objContent.style.display="none";
				}
				
				// second opening
				
				document.all[clickedHeader].className = "sts_menuhead_over";
				content_id = "content_L" + clicked_header_id;
				objContent = document.all[content_id];
				if(typeof(objContent)=="object")
				{
					// if there is some thing to show - showing
					objContent.style.display="";
				}
				opened_L = clicked_header_id;
			}
		}
	}

	return(true);
}


if (ie4||ns6)
{
	document.onclick=handleClick;
}

function handleHeaderStyle(e)
{
	var movedOut = new String(e.id)
	
	// right menu
	
	if(movedOut.substr(0,8)=="header_R")
	{
		if(opened_R!="")
		{
			if(opened_R==movedOut.substr(8,movedOut.length))
			{
				e.className = "sts_menuhead_over";
			}
			else
			{
				e.className = "sts_menuhead";
			}
		}
		else
		{
			e.className = "sts_menuhead"; 
		}
	}
	
	// left menu
	
	if(movedOut.substr(0,8)=="header_L")
	{
		if(opened_L!="")
		{
			if(opened_L==movedOut.substr(8,movedOut.length))
			{
				e.className = "sts_menuhead_over";
			}
			else
			{
				e.className = "sts_menuhead";
			}
		}
		else
		{
			e.className = "sts_menuhead"; 
		}
	}
	return(true);
}