//网站顶部旗下网站鼠标滑过显示下拉菜单脚本
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
	window.onload = func;
	}else{
	window.onload = function() {
    oldonload();
    func();
    }
  }
}

function addClass(element,value) {
  if (!element.className) {
    element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
  }
}

function removeClass(element, value){
  var removedClass = element.className;
  var pattern = new RegExp("(^| )" + value + "( |$)");
  removedClass = removedClass.replace(pattern, "$1");
  removedClass = removedClass.replace(/ $/, "");
  element.className = removedClass;
  return true;
}

/*bt login*/
function bt_login_more(overID,boxID,add_Class){
	if (!document.getElementById(overID)) return false;
	var btli = document.getElementById(overID);	
	var btpop = document.getElementById(boxID);	
	btli.onmouseover = function(){
			addClass(btpop,add_Class)			
		}
	btli.onmouseout = function(){
			removeClass(btpop,add_Class)
		}
}
function all_login_box(){
	bt_login_more('bt_login_bt','bt_login_pop','pop_block');
	bt_login_more('interval_more','interval_pop','interval_pop_block')
}
addLoadEvent(all_login_box);


// JavaScript Document
function correctPNG(logoID){
	if (!document.getElementById(logoID)) return false;
	var bt_logo = document.getElementById(logoID);
	
	var browser=navigator.appName 
	var b_version=navigator.appVersion 
	var version=b_version.split(";"); 
	var trim_Version=version[1].replace(/[ ]/g,""); 
	/*ie6*/
	if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE6.0"){
		
	var imgtag = bt_logo.getElementsByTagName("img");
	   for(var i=0; i<imgtag.length; i++)
		  {
			  var img = imgtag[i]
			  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.parentNode.href) imgStyle = "cursor:hand;" + imgStyle ;               
					 var strNewHTML = "<span class=\"info_logo\" " + imgID + imgClass + imgTitle+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";" + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader" + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" ;
					 img.outerHTML = strNewHTML;
					 //i = i-1
				 }
		  }
	}
}


function all_png(){
	correctPNG('thelogoID');
}
addLoadEvent(all_png);