var TBoxTimer;

function TBoxSlide(str_direction) {
var TContainerEl=document.getElementById('TBoxContainer');
var TMaskEl=document.getElementById('TBoxMask');

var TContainerHeight=TContainerEl.offsetHeight;
var TMaskHeight=TMaskEl.offsetHeight;

if (TContainerHeight>TMaskHeight)
	{
		var TContainerMaxTop=TMaskHeight-TContainerHeight;
		TBoxTimer=window.setInterval("TBoxMoveContainer('"+str_direction+"','"+TContainerMaxTop+"px')",40);
		//alert("TBoxMoveContainer('"+str_direction+"','"+TContainerMaxTop+"px')");
	}
}

function TBoxMoveContainer(str_direction, str_TContainerMaxTop) {
var TContainerEl=document.getElementById('TBoxContainer');
if (str_direction=="+" && parseInt(TContainerEl.style.top)>parseInt(str_TContainerMaxTop))
	{
		TContainerEl.style.top=parseInt(TContainerEl.style.top)-3+"px";
		//alert(TContainerEl.style.top);
		return true;
	}
if (str_direction=="-" && parseInt(TContainerEl.style.top)<0)
	{
		TContainerEl.style.top=parseInt(TContainerEl.style.top)+3+"px";
		return true;
	}
	
window.clearInterval(TBoxTimer);
return false;
}

function TBoxShowPicture(filename,description) {
var TBoxPictureEl=document.getElementById('TBoxPicture');
TBoxPictureEl.src=filename;
}