var currow=0;
var lastrow=0;
function InitPage()
{
  $('form tbody.scrollContent tr').hover(function () {
	  $('#row'+lastrow).removeClass('rowhover');
	  ResetRow();
	    $(this).addClass('rowhover');
	  }, function () {
	    $(this).removeClass('rowhover');
	  });
	  $('form tbody.scrollContent tr').click(function () {
		  GetRowData(this);
	  });
}
function ResetRow()
{
	currow=0;
	lastrow=$('#casetable tr').length-1;
}
function GetRowData(SelectedRow)
{
	/*QueryStr="rand="+Math.round(Math.random()*4+1)+"&uuid="+$("#"+SelectedRow.id+"uuid").val()+"&pid="+$("#"+SelectedRow.id+"portid").val();
	var retVal=0; // Legacy commented example retained without removed browser API.
	if(retVal==1)
		{
			$("#"+SelectedRow.id+"col").html("<img src='/matrix/images/edited.png' title='Details has been edited successfully. Please click refresh button to see the changes' />");
		}*/
	$("#uuid").val($("#"+SelectedRow.id+"uuid").val());
	SubmitForm("caseedit", "_blank", "caseGrid");
}
function keyListen(param1,param2,e) {
        var keycode = e.keyCode;
	if(keycode==13)
	{
		GetRowData(document.getElementById("row"+currow));
	}
	else
	{
		if(keycode==40)
		{
			currow=currow+1;
			if(currow>=$('#casetable tr').length){currow=1;lastrow=$('#casetable tr').length-1;}
		}
		if(keycode==38)
		{
			currow=currow-1;
			if(currow<=0){currow=$('#casetable tr').length-1;lastrow=1;}
		}
	        $('#row'+currow).addClass('rowhover');
	        $('#row'+lastrow).removeClass('rowhover');
	        document.getElementById('row'+currow).focus();
			lastrow=currow;		
	}
}

function callkeydownhandler(evnt) {
   var ev = evnt;
   var focusedRow = ev.target && ev.target.tagName === "TR" ? ev.target : null;
   if ((ev.key === "Enter" || ev.keyCode === 13) && focusedRow) {
      ev.preventDefault();
      GetRowData(focusedRow);
      return;
   }
   keyListen('','',ev);
}

window.document.addEventListener("keydown", callkeydownhandler, false);