function createNode(node){
var html="";
var clazz=_getNodeClass(node.type);
html="<div id='node"+node.index+"' onBeginDrag='calcInOutLine("+node.index+");'        onSelected='selectThisNode("+node.index+");' onDraging='moveRelevantLines("+node.index+")' class='"+clazz+"' style='top:"+node.position.top+";left:"+node.position.left+";z-index:"+(currentIndex++)+"'><table border=0 width=100% height=100%><tr><td align=center valign=middle style='font-size:12px'>"+node.name+"</td></tr></table></div>";
var nc=document.createElement("div");
nc.id="nc"+node.index;
document.body.appendChild(nc);
    nc.innerHTML+=html;//这让它隔2秒再加html怎么写