function assign(element, node, value)
{
	if(!element || !node) return false;
	element[node]=value;

	return true;
}

function append(element, node, value, mode)
{
	if(!element || !node) return false;

	if(mode=='up') 
		element[node] = value + element[node];
	else
		element[node]+=value;

	return true;
}

var oIFrame = null;

function createIFrame()
{
	var newIFrame = document.createElement('iframe');

	newIFrame.width = 0;
	newIFrame.height = 0;
	newIFrame.frameBorder = 0;
	newIFrame.name = 'buffer';
	newIFrame.id = 'buffer';

	document.body.appendChild(newIFrame);

	oIFrame = frames['buffer'];
}

function execPHPScript(php_script)
{
	if(!oIFrame)
	{
		createIFrame();
		setTimeout('execPHPScript("'+php_script+'")', 10);
		return;
	}

	oIFrame.location = php_script;
}