function init() {
  if (!document.getElementById) return
  var imgOriginSrc;
  var imgTemp = new Array();
  var imgarr = document.getElementsByTagName('img');
  for (var i = 0; i < imgarr.length; i++) {
	if (imgarr[i].getAttribute('hsrc')) {
		imgTemp[i] = new Image();
		imgTemp[i].src = imgarr[i].getAttribute('hsrc');
		imgarr[i].onmouseover = function() {
			imgOriginSrc = this.getAttribute('src');
						var imagetest=new Image()
						imagetest.src=this.getAttribute('hsrc')
						if (imagetest.complete)
			this.setAttribute('src',this.getAttribute('hsrc'))
		}
		imgarr[i].onmouseout = function() {
						var imagetest=new Image()
						imagetest.src=imgOriginSrc
						if (imagetest.complete)
			this.setAttribute('src',imgOriginSrc)
		}
	}
  }
}
onload=init;