var timerlen = 5;
var slideAniLen = 300;

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);

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

obj[objname].style.display = "block";
startTime[objname] = (new Date()).getTime();
endHeight[objname] = obj[objname].scrollHeight;

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;
}

function toggleSlide(objname){ 

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


	// div is hidden, so let's slide down 
	slidedown(objname); }
	
	else{ // div is not hidden, so slide up 
	slideup(objname); 
	
	} 
} 


function faq(objname){ 
	var f=1; for (f=1;f<=300;f++) { 
	if (document.getElementById("faq" + f)) 
	{ 
	slideup("faq" + f); 
	} 
	slidedown(objname); 
	} 
}