var debug_block = false;

function debug_Init() {
	debug_block = document.getElementsByTagName('body')[0];
	debug = document.createElement('div');
	debug.id = 'debug';
	debug.style.position = 'absolute';
	debug.style.position = 'fixed';
	debug.style.textAlign = 'left';
	debug.style.top = '0px';
	debug.style.zIndex = '50';	
	debug.style.left = '0px';
	debug.style.backgroundColor = '#fff';
	debug.style.border = '1px solid #f00';
	debug.style.padding = '0.5em';
	debug.style.color = '#000';
	debug_block.appendChild(debug);
}

function echo(text) {
	if (!debug_block) {
		debug_Init();
   }
	debug.innerHTML += text + "<br>";
	//debug.innerHTML = text + "<br>" + debug.innerHTML;
}