// JS Header of _nav_ComputedNavigator subform

var counter=0
var leftBorder=0
var menuReady=false

var navDropDiv=new Array();
var navElements=new Array();
var navNumElements=new Array()
var navKey=new Array()
var navRevKey=new Array()
var navOffset=new Array()
var navCurrentMenu=-1
var navNumMenus=-1
var navTrackMouse=false
var navLevel1Built=false

var navMaxY=0
var navMinY=0
var navMaxX=0
var navMinX=0
var navMouseX=0
var navMouseY=0

// check browser type & version
navV4=(parseInt(navigator.appVersion)>=4 && parseInt(navigator.appVersion)<=5)?1:0
navIe=(document.all && navV4)?1:0
navNs=(document.layers && navV4)?1:0

// alert ( 'd.a='+document.all+';ns='+navNs+';ie='+navIe+';v4='+navV4 )

function navAddElement ( navId, navCaption, navUrl ) {
	// used by computed fields to build navigator elements
	var i=0
	while ( i <= navNumMenus && navDropDiv[i] !== 'navDrop_'+navId ) {
		i++
	}
	if ( i <= navNumMenus ) {
		if ( navNumElements[i]==0 ) {
			navElements[i]=new Array()
		} 
		navNumElements[i]++				
		navElements[i][navNumElements[i]]=new Array(navUrl,navCaption)
	}
}

function navWriteDrops() {
	var html=''
	var navDropStyle=''
	var navUrl=''
	var navCaption=''

	for ( var i=0 ; i<=navNumMenus ; i++ ) {
		menuKey=navRevKey[i]
		html+='<DIV ID="'+navDropDiv[i]+'" CLASS="menuDropDiv" onMouseOver="navShowDrop(\''+menuKey+'\')" onMouseOut="navHideDrop()">'
		for ( var j=1 ; j<= navNumElements[i] ; j++ ) {
			navUrl=navElements[i][j][0]
			navCaption=navElements[i][j][1]
			html+='<IMG SRC="/icons/ecblank.gif" WIDTH="6" HEIGHT="4">'
			html+='<A class="menuDropItem" HREF="'+navUrl+'" onMouseOver="window.status=\''+navUrl
			html+='\';return(true)" onMouseOut="window.status=\'\';return(true)" onClick="navOpenUrl(\''+navUrl+'\')">'
			html+=navCaption+'</A><IMG SRC="/icons/ecblank.gif" WIDTH="6" HEIGHT="4"><BR>'
			if ( j == navNumElements[i] ) { 
				html +='<IMG SRC="/icons/ecblank.gif" WIDTH="150" HEIGHT="1" ALIGN="LEFT" BORDER="0">'
			}
		}
		html+='</DIV>'
	}
	document.write(html)
	navLevel1Built=true
}

function navCreateDrop ( navId, navElemOffset ) {
	navNumMenus++
	navDropDiv[navNumMenus]='navDrop_'+navId
	navNumElements[navNumMenus]=0
	navOffset[navNumMenus]=navElemOffset
	navKey[navId]=navNumMenus
	navRevKey[navNumMenus]=navId
	navElements[navNumMenus]=''
}

function navShowDrop(navMenu){
	if ( menuReady==true && navLevel1Built==true ) {
		navCurrentMenu=navKey[navMenu]; 
		navHideMenus(); 
		navShowMenunow=1
		navShowMenu(navKey[navMenu])
	}
}

function navHideDrop(){
	navCurrentMenu=-1; 
	setTimeout('navHideMenus()',250)	
	}

function navShowMenu(navMenu){
	if ( navNumElements[navMenu] > 0 ) {
		navTrackMouse=true
		if(navIe){ eval(navDropDiv[navMenu]+'.style.visibility="visible"') }
		if(navNs){ eval('document.'+navDropDiv[navMenu]+'.visibility="show"');}
		//alert(navDropDiv[navMenu]);
	}
}

function navHideMenus(){
	for(i=0;i<navDropDiv.length;i++){  
		navHideMenu=0; 
		navCheckMousePosition(i)
		if(navIe && navCurrentMenu!=i){ 
			if(navHideMenu){ eval(navDropDiv[i]+'.style.visibility="hidden"') } 
		}
		if(navNs && navCurrentMenu!=i){ 
			if(navHideMenu){ eval('document.'+navDropDiv[i]+'.visibility="hide"') }
		}
	}
}

if (navNs) document.captureEvents(Event.MOUSEMOVE)

// code to hide div when mouse moves out
function navGetMousePos(e){
	if(navNs){ navMouseX=e.pageX; navMouseY=e.pageY }
	if(navIe){ navMouseX=event.clientX; navMouseY=event.clientY }
}

function navCheckMousePosition(i){
	if(navNs){     
		navMinX=eval('document.'+navDropDiv[i]+'.left')
		navMaxX=navMinX+eval('document.'+navDropDiv[i]+'.clip.width')
		navMinY=eval('document.'+navDropDiv[i]+'.top')
		navMaxY=navMinY+eval('document.'+navDropDiv[i]+'.clip.height')
	}    
	if(navIe){     
		navMinX=eval(navDropDiv[i]+'.style.pixelLeft')
		navMaxX=navMinX+eval(navDropDiv[i]+'.scrollWidth')
		navMinY=eval(navDropDiv[i]+'.style.pixelTop')
		navMaxY=navMinY+eval(navDropDiv[i]+'.scrollHeight')
	}
	if (navMouseX>=navMinX && navMouseX<=navMaxX && navMouseY>=navMinY && navMouseY<=navMaxY){
		navHideMenu=0; 
		
		// suspend the timeout if menu has been clicked or browser disappears up its own bottom
		if ( navTrackMouse==true ) {
			setTimeout('navHideMenus()',250)
		}
	} else { 
		navHideMenu=1 
	}
	return navHideMenu
	}

function navSetDropPosition () {
	var topOffset=0
	var leftOffset=leftBorder
	
	if (navLevel1Built==true) {
		if(navIe){ 
			topOffset=document.images['navTLImg'].offsetTop-1;
		}
		if(navNs){ 
			topOffset=document['navTL'].top;
		}

		for ( var i=0 ; i<= navNumMenus ; i++ ) {
			if(navIe){ 
				eval(navDropDiv[i]+'.style.top='+topOffset)
				eval(navDropDiv[i]+'.style.left='+leftOffset)
			}
			if(navNs){ 
				eval('document.'+navDropDiv[i]+'.top='+topOffset)
				eval('document.'+navDropDiv[i]+'.left='+leftOffset)
			}
			leftOffset=leftOffset+parseInt(navOffset[i])+1
		}
	}
	menuReady=true
}

function navOpenUrl ( url ) {
	navHideMenus()
	navTrackMouse=false
//	alert ( navTrackMouse )
	window.location.href=url
}


// end JS Header of _nav_ComputedNavigator subform