// JavaScript Document

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_nbGroup(event, grpName) { //v6.0
  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])? args[i+1] : img.MM_up);
      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") {
    nbArr = document[grpName];
    if (nbArr)
      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])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}
 
  
function checklogin(){
      if(document.myForm.username.value==""){alert("请输入用户名!");document.myForm.username.focus();return false	}
	  if(document.myForm.password.value==""){alert("请输入密码!");document.myForm.password.focus();return false	}
}

function check_search(){
	if(document.Search.Keyword.value=="关键词"){
		alert("请输入关键词!");
		document.Search.Keyword.value="";
		document.Search.Keyword.focus();
		return false	}
	}




function time()
{
var Digital=new Date()
var hours=Digital.getHours()
var minutes=Digital.getMinutes()
var seconds=Digital.getSeconds()

if(minutes<=9)
minutes="0"+minutes
if(seconds<=9)
seconds="0"+seconds
myclock="现在时间是　"+hours+":"+minutes+":"+seconds+""
if(document.layers){document.layers.liveclock.document.write(myclock)
document.layers.liveclock.document.close()
}else if(document.all)
liveclock.innerHTML=myclock
setTimeout("time()",1000)
}

function chkemail(a)
{	var i=a.length;
	var temp = a.indexOf('@');
	var all = a.substring(temp);
	var tempd = all.indexOf('.')+temp;
	if (temp > 1) {
		if ((i-temp) > 7){
			if ((tempd-temp) > 2){
				if ((i-tempd)>2){
					return 1;
				}
			}
		}
	}
	return 0;
}

//只输入指定字符串
function keyFilter(theStr){
var tempStr
tempStr=theStr
if (event.keyCode == 13) return;
for (i=0;i<tempStr.length;i++){
	if (event.keyCode==tempStr.charCodeAt(i)){
		return;
	}
}
event.returnValue = false;
}

//只输入实数
function keyFilterFloat(me)
{
	if (event.keyCode == 13) return;
	if ((event.keyCode>=48 && event.keyCode<=57) || (event.keyCode==46 && tempStr.indexOf(".")==-1))
		return;
	event.returnValue = false;
}

//只输入整数
function keyFilterInteger(me)
{
	if (event.keyCode == 13) return;
	if (event.keyCode>=48 && event.keyCode<=57)
		return;
	event.returnValue = false;
}