// JavaScript Document
var t1FirstVisible = 0;
var t2FirstVisible = 0;

var himlinkFirstVisible = 0;

function nextScrollHim(type,dir){
	
	var prefix;
	var total;
	var lastVisible;
	var navArrowSuffix;
	var numToShow;
	
	if (type == 10){
		prefix = 'himlink';
		navArrowSuffix = 'Link';
		firstVisible = himlinkFirstVisible;
		total = linkTotalHim;
		numToShow = 4;
	}
	else{
		prefix = 't' + (type+1) + 'i';
		navArrowSuffix = 't' + (type+1);
		firstVisible = eval('t' + (type+1) + 'FirstVisible');
		total = eval('t' + (type+1) + 'Total');
		numToShow = 4;
	}

	if (dir == 0){
		if (firstVisible > 0){
			firstVisible--;
			document.getElementById('navRightHim' + navArrowSuffix).style.display = '';
			if (firstVisible <= 0) document.getElementById('navLeftHim' + navArrowSuffix).style.display = 'none';
			if (type == 10){himlinkFirstVisible = firstVisible}else{eval('t' + (type+1) + 'FirstVisible = firstVisible');}	
		}
	}
	else{
		if (firstVisible < (total - numToShow)){
			firstVisible++;
			document.getElementById('navLeftHim' + navArrowSuffix).style.display = '';
			if (firstVisible + numToShow == total) document.getElementById('navRightHim' + navArrowSuffix).style.display = 'none';
			if (type == 10){himlinkFirstVisible = firstVisible}else{eval('t' + (type+1) + 'FirstVisible = firstVisible');}		
		}
	}
	
	for (i=0;i<total;i++){
		if (i >= firstVisible && i <= firstVisible+(numToShow-1)){
			document.getElementById(prefix + i).style.display = '';
		}
		else{
			document.getElementById(prefix + i).style.display = 'none';
		}
	}
	
}