var direction = 0;

function moveit() {
	currentMargin = document.getElementById('mBlog').style.marginLeft;
	var currentMarginNo;
	currentMarginNo = currentMargin.split("px");
	switch (direction) {
		case 0 : newMarginNo = currentMarginNo[0] - 2; break;
		case 1 : newMarginNo = (currentMarginNo[0]*1) + 2; break;
	}
	if (newMarginNo<(-1500)) {
		direction = 1;
	}
	else if (newMarginNo>=-20) {
		direction = 0;
	}
		
	document.getElementById('mBlog').style.marginLeft = newMarginNo + 'px';
	//document.getElementById('mBlogMoreLinks').innerHTML = newMarginNo + 'px' + 'Direction: ' + direction;
	}
	
function startPoint() { 
	moveit();
	setTimeout(function(){startPoint();}, 30);
}