function next()
{
	var start = document.getElementById("start").value;
	var size = document.getElementById("size").value;
	document.getElementById("start").value = parseInt(start,10) + parseInt(size,10);
	document.forms["form"].submit();
}

function prev()
{
	var start = document.getElementById("start").value;
	var size = document.getElementById("size").value;
	document.getElementById("start").value = parseInt(start,10) - parseInt(size,10);
	document.forms["form"].submit();
}

function goTo()
{
	if( window.event.keyCode == 13)
		if (parseInt(document.getElementById("page").value,10) <= parseInt(document.getElementById("nPages").value,10) && parseInt(document.getElementById("page").value,10) >= 1){
			var start = ((parseInt(document.getElementById("page").value,10)-1)*(parseInt(document.getElementById("size").value,10))) + 1;
			var size = document.getElementById("size").value;
			document.getElementById("start").value = start;
			document.forms["form"].submit();
		}
		else alert("Invalid page number!");
}

function nextall()
{
	document.getElementById("start").value = ((parseInt(document.getElementById("nPages").value,10)-1)*(parseInt(document.getElementById("size").value,10))) + 1;
	document.forms["form"].submit();
}

function previousall()
{
	document.getElementById("start").value = 1;
	document.forms["form"].submit();
}