function changeTick()
	{
	ct++;
	if (ct>=tl) ct=0;
	tk.href = tlink[ct];
	runTick(0);
	}

function runTick(cl)
	{
	nv = new String();
	nl = thead[ct].length+1;
	
	if (cl<nl)
		{
		nv = thead[ct].substring(0,cl);
		tk.innerHTML = nv + "_";
		cl++;
		setTimeout('runTick("' + cl + '")',75);
		}
		else
		{
		setTimeout('changeTick()',5000);	
		}

	}