var timerlen = 1;
var slideAniLen = 1050;

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 != "")
	if(document.getElementById(objname).style.height == "250px" )
                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")
	if(document.getElementById(objname).style.height == "30px")
               return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide_2(objname);
}

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

        //endHeight[objname] = parseInt(obj[objname].style.height) ;
	endHeight[objname] = 219 ;
	
	//alert ("test")
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                obj[objname].style.height = "31px";
        }

        //obj[objname].style.display = "block";
	//obj[objname].style.height= "31px";
	
	
       timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
		
		
}
function startslide_2(objname){
        obj[objname] = document.getElementById(objname);

        //endHeight[objname] = parseInt(obj[objname].style.height) ;
	
	endHeight[objname] = 219 ;
	
        startTime[objname] = (new Date()).getTime();
if(dir[objname] == "up"){
                obj[objname].style.height = "249px";
        }

        //obj[objname].style.display = "block";
	//obj[objname].style.height= "249px";
	
	
        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;
						 d = endHeight[objname] - d;

				obj[objname].style.height = 31 + d + "px" ;	
               //obj[objname].style.height = d + "px";
				
				// if(dir[objname] == "down")
                     //  d =  d - endHeight[objname] ;
					   
				//	obj[objname].style.height = 31 + d + "px" ;	

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

        return;
}


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

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

        //obj[objname].style.height = endHeight[objname] + "px";
	if(dir[objname] == "up")
		obj[objname].style.height = "30px";
	if(dir[objname] == "down")
			
		obj[objname].style.height = "250px";

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

        return;
}