//--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;
}


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
	{
		if(e.type!="hidden") {
			e.focus(); 
		}
		return false;
	}
}
//---输入框默认值
function findvalue(objname,inputMsgs){//查找默认值
  for(i=0;i<inputMsgs.length;i++){
     var tempname=inputMsgs[i].split(";");
     if(objname==tempname[0]){
	    return tempname[1];
	 }
  }  
  return false;
}

function initMsg(inputMsgs){//初始化文本框内提示	
  for(i=0;i<inputMsgs.length;i++){
     var tempname=inputMsgs[i].split(";");
     $id(tempname[0]).value=tempname[1];//文本框提示
	 $id(tempname[0]).style.color="#CCC";//文本框颜色
	 //className
	 $id(tempname[0]).onfocus=function(){
		 inputMsg(this,inputMsgs);
	 };
	 $id(tempname[0]).onblur=function(){
		 inputOut(this,inputMsgs);
	 };
  } 
}

function inputMsg(obj,inputMsgs){//获得焦点	
	if(obj.value==findvalue(obj.id,inputMsgs)){		
		 obj.value="";
		 obj.style.color="#000";
	}	
}

function inputOut(obj,inputMsgs){//失去焦点
	//obj.type="text";
    var defaultvalue=findvalue(obj.id,inputMsgs);
	if(obj.value==defaultvalue || obj.value==""){
	   obj.value=defaultvalue ;
	   obj.style.color="#CCC";
	}
}

//ie6 png透明
function IEversion(){
	var arVersion = navigator.appVersion.split("MSIE");
    var version = parseFloat(arVersion[1]);
	return version;
}
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{    
    if ((IEversion() >= 5.5 && IEversion() < 7) && (document.body.filters)) 
	{
       for(var j=0; j<document.images.length; j++)
       {
          var img = document.images[j]
          var imgName = img.src.toUpperCase()
          if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
          {
             var imgID = (img.id) ? "id='" + img.id + "' " : "";
             var imgClass = (img.className) ? "class='" + img.className + "' " : "";
             var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
             var imgStyle = "display:inline-block;" + img.style.cssText ;
             if (img.align == "left") imgStyle = "float:left;" + imgStyle;
             if (img.align == "right") imgStyle = "float:right;" + imgStyle;
             if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle;
             var strNewHTML = "<span " + imgID + imgClass + imgTitle
             + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
             + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
             + "(src=\'" + img.src + "\', sizingMethod='image');\"></span>" ;
             img.outerHTML = strNewHTML;
             j = j-1;
          }
       }
    }    
}

function delUpload(file) {
	document.getElementById('show_'+file).className='b_none';
	document.getElementById(file).value='';
}

window.attachEvent("onload", correctPNG);