// JavaScript Document
//--鼠标经过图像
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  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) { //v4.01
  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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//--
//--返回id名的对象
function $id(id)
{
	return document.getElementById(id);
}
//--
//获取对象y坐标
function getY(e)
{
 var   obj   =   e; 
 var   getTop   =   obj.offsetTop;
 while(obj   =   obj.offsetParent) 
 {
    getTop   +=   obj.offsetTop;  
 }
 return getTop;
}
//获取对象x坐标
function getX(e)
{
 var   obj   =   e; 
 var   getLeft   =   obj.offsetLeft; 
 while(obj   =   obj.offsetParent) 
 {
    getLeft   +=   obj.offsetLeft; 
 }
 return getLeft;
}
//--导航
function whatis(obj,obj2){	
    $id(obj).style.left=getX($id(obj2))-13+"px";
	$id(obj).style.top=getY($id(obj2))+44+"px";
	$id(obj).style.display="block";
}
function unwhatis(obj){
	$id(obj).style.display="none";
}
//--
function trim(s)
{
  while (s.substring(0,1) == ' ') {
    s = s.substring(1,s.length);
  }
  while (s.substring(s.length-1,s.length) == ' ') {
    s = s.substring(0,s.length-1);
  }
  return s;
}
//--
function isNotEmpty(e)
{
	str = trim(e.value);
	var reg = /./;
	if (str.match(reg))
	{
		return true;
	}
	else
	{
		e.select();
		return false;
	}
}