// Sliding routines by Harry Maugans http://www.harrymaugans.com

var timerlen = 5;
var thisslideAniLen = 450;

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var dir = new Array();
var theoffetheight = 0;
var mydiv = null;
var slideIsInMotion = false;

function toggleSlide(objname,the_table){
  if(document.getElementById(objname).style.display == "none"){
    // div is hidden, so let's slide down
    rcsgslidedown(objname,the_table);
  }else{
    // div is not hidden, so slide up
    rcsgslideup(objname,the_table);
  }
}

function rcsgslidedown(objname,the_table){

        if(moving[objname])
                return;
                
	mydiv = document.getElementById(objname);
 	mydiv.style.display = 'block';// briefy make it a flow object so we can grab the current height of the table
 	var table = document.getElementById(the_table);
 	theoffetheight = table.offsetHeight;
 	mydiv.style.display = 'none';// hide div again so slide routine will work
	//alert("theoffetheight "+theoffetheight)
		if (theoffetheight > 400 && theoffetheight < 799) thisslideAniLen = theoffetheight * 1.2;
		if (theoffetheight > 800 && theoffetheight < 9999) thisslideAniLen = theoffetheight * 1.5;
		//alert("thisslideAniLen "+thisslideAniLen)
        if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible

        moving[objname] = true;
		slideIsInMotion = true;  // global
        dir[objname] = "down";
        rcsgstartslide(objname);

}

function rcsgslideup(objname,the_table){
        if(moving[objname])
                return;
                
    var table = document.getElementById(the_table);
 	theoffetheight = table.offsetHeight;
	thisslideAniLen = 450; // keep fixed?
	
        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

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

function rcsgstartslide(objname){
	
        obj[objname] = document.getElementById(objname);
       
        endHeight[objname] = parseInt(theoffetheight);
        startTime[objname] = (new Date()).getTime();

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

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

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

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

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

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

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

        if(dir[objname] == "up")
                obj[objname].style.display = "none";
		
       obj[objname].style.height = endHeight[objname] + "px";
		slideIsInMotion = false;  // global
        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);
        
        //document.getElementById(objname).style.height = 'auto';// return div to auto so we can resize the window if we want;

		

        return;
        
}