var timerlen = 0;
var slideAniLen = 0;
var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();

function slidedown(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}

function slideup(objname){
        if(moving[objname])
                return;

        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        obj[objname] = document.getElementById(objname);

        endHeight[objname] = parseInt(obj[objname].style.height);
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                obj[objname].style.height = "1px";
        }

        obj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;

                obj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);

        if(dir[objname] == "up")
                obj[objname].style.display = "none";

        obj[objname].style.height = endHeight[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);

        return;
}
//added by chris..changes color of sub nav backgrounds when the page is loaded
function togglgeslideColor(objname){
        
	
		document.getElementById(objname).style.backgroundColor = "#093c71";	
		document.getElementById(objname).style.color = "#ffffff";
		document.getElementById(objname).style.borderRight = "1px solid #093c71";
		document.getElementById(objname).style.borderLeft = "1px solid #093c71";
	
}





function toggleSlide(objname,linkPressed,changeBorderColor,linkFocused){

if(document.getElementById(objname).style.display == "none"){

    slidedown(objname);
	newImage = 	"images/sub_nav_icon_expanded.gif";
	document.getElementById(linkPressed).style.backgroundImage = "url('"+newImage+"')";	
	document.getElementById(linkPressed).style.backgroundRepeat = "no-repeat";	
	
	if (linkFocused){
		document.getElementById(linkFocused).style.backgroundColor = "#093c71";
		document.getElementById(linkFocused).style.color = "#ffffff";
		document.getElementById(linkFocused).style.borderRight = "1px solid #093c71";
		document.getElementById(linkFocused).style.borderLeft = "1px solid #093c71";
	}
	if (changeBorderColor == "doNotChangeBorderColor") {
	}else{
	document.getElementById(linkPressed).style.borderBottom = "0px";
	}
	
  }else{
    slideup(objname);
	newImage = 	"images/sub_nav_icon_not_expanded.gif";
	document.getElementById(linkPressed).style.backgroundImage = "url('"+newImage+"')";
	document.getElementById(linkPressed).style.backgroundRepeat = "no-repeat";
	
	if (changeBorderColor == "doNotChangeBorderColor") {
		document.getElementById(linkPressed).style.borderBottom = "0px";
			}else{
		document.getElementById(linkPressed).style.borderBottom = "1px solid #e1e1e1";
	}

  }
  
}