function doZoom(size){
        eidzoom = document.getElementById('zoom');
	eidzoom.style.cssText="font-size: " + size + "pt; ";
	var childrens = eidzoom.childNodes;
	for(var i=0;i<childrens.length;i++) {
		if (childrens[i].style) {
			childrens[i].style.cssText="font-size: " + size + "pt; "; 
		}
		else if (childrens[i].setAttribute) {	
			childrens[i].setAttribute("style","font-size: " + size + "pt; ");
		}
	}
}
function openwin1(theURL,winName,features) { 
  window.open(theURL,winName,features);
}
function changebgc(e,color){
	e.style.cssText="background-color:"+color+";";
}
//改变图片大小
function resizepic(thispic)
{
if(thispic.width>700) thispic.width=700;
}
//无级缩放图片大小
function bbimg(o)
{
  var zoom=parseInt(o.style.zoom, 10)||100;
  zoom+=event.wheelDelta/12;
  if (zoom>0) o.style.zoom=zoom+'%';
  return false;
}