var TpsInterTick = 100;
var rollBoxOut = false;
var rollBoxIn = false;
var boxOutHeight;
var boxInHeight;
var boxObjects = new Array();
var defaultSpeed = false;
function boxTick(boxId){
	var topPos = boxObjects[boxId]['objRef'].style.top.replace(/[^\-0-9]/g,'');
	topPos = topPos - boxObjects[boxId]['rollSpeed'];
	if (topPos==-2100)
	{
	topPos = -280;
	}
	//if (topPos/1 + boxObjects[boxId]['boxInHeight']/1<0) topPos = -1;
	//document.getElementById('teste').value=topPos;
	boxObjects[boxId]['objRef'].style.top = topPos + 'px';
	setTimeout('boxTick("' + boxId + '")',TpsInterTick);
	

	
}
function stopTick(){
	var boxId = this.id;
	boxObjects[boxId]['rollSpeed'] = 0;
}
function startTick(){
	var boxId = this.id;
	boxObjects[boxId]['rollSpeed'] = boxObjects[boxId]['oldSpeed'];
}
function rollInit(boxId,rollSpeed){

	rollBoxOut = document.getElementById(boxId);
	rollBoxIn = rollBoxOut.getElementsByTagName('DIV')[0];
	
	rollBoxOut.style.position = 'relative';
	rollBoxOut.style.overflow = 'hidden';
	rollBoxIn.style.position = 'relative';
	
	rollBoxOut.onmouseover = stopTick;
	rollBoxOut.onmouseout = startTick;
	
	defaultSpeed = rollSpeed;
	rollBoxIn.style.top = '-380px';
	boxObjects[boxId] = new Array();
	boxObjects[boxId]['objRef'] = rollBoxIn;
	boxObjects[boxId]['boxInHeight'] = rollBoxIn.offsetHeight;
	boxObjects[boxId]['boxOutHeight'] = rollBoxOut.clientHeight;
	
	boxObjects[boxId]['rollSpeed'] = rollSpeed;
	boxObjects[boxId]['oldSpeed'] = rollSpeed;
	
	setTimeout(function () { boxTick(boxId); }, 5000);
	
	
	//boxTick(boxId);
}