// JavaScript Document
var dropstatus=0;
function dropmenu(elem){
	dropstatus=1;
	document.getElementById('drop_a').style.display="none";
	document.getElementById(elem).style.display="block";
}

function hidedrop(){
	dropstatus=0;
		setTimeout("hidealldrop()",500);
}

function hidealldrop(){
	if(dropstatus==0){
	document.getElementById('drop_a').style.display="none";

	}
}

function changestatus(){
	dropstatus=1;
}




function loadlink(){
	var a;  //a为数组
	a=getElementsByClassName('droplink','a',document);
	for(i=0;i<a.length;i++){
		a[i].onmouseover=changestatus;
		a[i].onmouseout=hidedrop;
	}
}

function getElementsByClassName(strClassName, strTagName, oElm){
    var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}


function addLoadEvent(func){
	var oldonload=window.onload;
	if (typeof window.onload!='function'){
		window.onload=func;
	}
	else{
		window.onload=function(){
			oldonload();
			func();
		}
	}
}

addLoadEvent(loadlink);

/*购买云主机*/
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_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_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];}
}