//Preload Images
function MM_preloadImages() {
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];}}
}
//Jump menu
function MM_jumpMenu(targ,selObj,restore){
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}
//Change Button Style JS
function change(styleID){
var el=event.srcElement
if (el.tagName=="INPUT")
(el.tagName=="INPUT" && el.type=="")
event.srcElement.className=styleID;
}
//Check Top Sign Up Form Email
function checkEmailTSLF(form){
var str = document.topsignlogform;
if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(str.email.value))){
alrtval="Please enter a valid email address!\n\n请输入有效的电子邮件地址!\n"	
alert(alrtval);
str.email.focus();
return false;
}}
//allow number input only
function inputNumber(){
if (event.keyCode < 46 || event.keyCode == 47 || event.keyCode > 57) event.returnValue = false;
}