ไม่เรียงกันจากน้อยไปหามากทำไงดีครับช่วยเหลือหน่อยครับ

<script>
function init(){
	lblObj = document.getElementById("llbMessage");
	lblObj.innerHTML = ""
	lblObj.innerHTML += "<br>"
	
	a = 10;
	b = 20;
	c = 30;
	//alert("a = "+a+" b = "+b+" c = "+c);
	lblObj.innerHTML += "a = "+a+" b = "+b+" c = "+c + "<br>"

	a=a+b;
	c=c-b;
	//alert("a = "+a+" b = "+b+" c = "+c);
	lblObj.innerHTML += "a = "+a+" b = "+b+" c = "+c + "<br>"

	x = [0,0,0,0,0,0,0,0,0,0];

	lblObj.innerHTML += "<br>"
	for (i=0; i < x.length;i++)
	{
		x[i]= parseInt(Math.random()*10);
		lblObj.innerHTML += x[i]+"<br>"
		//alert(x[i]+" ");
	}

	for (i=0; i<x.length;i++)
	{
		for (j =0; j<x.length;j++)
		{
			if (x[j]>x[j+1])
			{
				y = x[j];
				x[j]=x[j+1];
				x[j+1]=y;
				
				//lblObj.innerHTML += (y) + "<br>";
				//lblObj.innerHTML += x[j] + "<br>";
				//lblObj.innerHTML += x[j+1] + "<br>";
				//document.write(x[j]);
				//document.write(x[j+1]);
			}
			/*
			*/
		}
	}
	
	lblObj.innerHTML += "====================<br>"
	for (i=0; i < x.length;i++){
		lblObj.innerHTML += x[i] + "<br>";
	}

}
</script>
<input type="button" value="sort" onclick="init();"/>
<label id="llbMessage"></label>