function init(){	MM_preloadImages('http://www.fengbin.com/pic/main/homeover.gif',	'http://www.fengbin.com/pic/main/javaover.gif',	'http://www.fengbin.com/pic/main/toolover.jpg',	'http://www.fengbin.com/pic/main/fileover.gif',	'http://www.fengbin.com/pic/main/photoover.gif',	'http://www.fengbin.com/pic/main/forumover.gif');}function MM_preloadImages() {  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}}function MM_findObj(n, d) {  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);  if(!x && d.getElementById) x=d.getElementById(n); return x;}function MM_nbGroup(event, grpName){  var i,img,nbArr,args=MM_nbGroup.arguments;  if (event == "init" && args.length > 2)  {    if ((img = MM_findObj(args[2])) != null && !img.MM_init)    {      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();      nbArr[nbArr.length] = img;      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null)      {        if (!img.MM_up) img.MM_up = img.src;        img.src = img.MM_dn = args[i+1];        nbArr[nbArr.length] = img;      }    }  }  else if (event == "over")  {    document.MM_nbOver = nbArr = new Array();    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null)    {      if (!img.MM_up) img.MM_up = img.src;      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];      nbArr[nbArr.length] = img;    }  }  else if (event == "out" )  {    for (i=0; i < document.MM_nbOver.length; i++)    {      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up;    }  }  else if (event == "down")  {    if ((nbArr = document[grpName]) != null)      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }    document[grpName] = nbArr = new Array();    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null)    {      if (!img.MM_up) img.MM_up = img.src;      img.src = img.MM_dn = args[i+1];      nbArr[nbArr.length] = img;    }  }}// #############################################################################// let's find out what DOM functions we can usevar vbDOMtype = '';if (document.getElementById){	vbDOMtype = "std";}else if (document.all){	vbDOMtype = "ie4";}else if (document.layers){	vbDOMtype = "ns4";}var vBobjects = new Array();// #############################################################################// function to emulate document.getElementByIdfunction fetch_object(idname, forcefetch){	if (forcefetch || typeof(vBobjects[idname]) == "undefined")	{		switch (vbDOMtype)		{			case "std":			{				vBobjects[idname] = document.getElementById(idname);			}			break;			case "ie4":			{				vBobjects[idname] = document.all[idname];			}			break;			case "ns4":			{				vBobjects[idname] = document.layers[idname];			}			break;		}	}	return vBobjects[idname];}function toggle_group(group){	var curdiv = fetch_object("group_" + group);	if (curdiv.style.display == "none")	{		open_close_group(group, true);	}	else	{		open_close_group(group, false);	}}function open_close_group(group, doOpen){	var curdiv = fetch_object("group_" + group);	var curbtn = fetch_object("button_" + group);	if (doOpen)	{	curdiv.style.display = "";		curbtn.src = "./pic/main/minus.gif";		curbtn.title = "";	}	else	{		curdiv.style.display = "none";		curbtn.src = "./pic/main/plus.gif";		curbtn.title = "";	}}