function getImageDataFromImage(idOrElement){
	var theImg = (typeof(idOrElement)=='string')? document.getElementById(idOrElement):idOrElement;
	var cvs = document.createElement('canvas');
	cvs.width = theImg.width;
	cvs.height = theImg.height;
	var ctx = cvs.getContext("2d");
	ctx.drawImage(theImg,0,0);
	
	return (ctx.getImageData(0, 0, cvs.width, cvs.height));
}

function getDataUrlFromImage(idOrElement){
	var theImg = (typeof(idOrElement)=='string')? document.getElementById(idOrElement):idOrElement;
	
	var cvs = document.createElement('canvas');
	cvs.setAttribute('id','tempCanvas');
	
	cvs.width = theImg.width;
	cvs.height = theImg.height;
	var ctx = cvs.getContext("2d");
	ctx.drawImage(theImg,0,0);
	var dataURL = cvs.toDataURL();
	
	return dataURL;
}