js onload image

//验证邮箱格式
function isEmail(strEmail) {
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1) {
return true;
} else {
return false;
}
}


//Email验证
function checkEmail(a) {
return /\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/.test(a);
/*
var i=a.length;
var temp = a.indexOf('@');
var tempd = a.indexOf('.');
if (temp > 1)
  if ((i-temp) > 3)
   if ((i-tempd)>0)  return true;
return false;*/
}

//url校验
function isUrl(url) {
var urlpatern1 = /^https?:\/\/(([a-zA-Z0-9_-])+(\.)?)*(:\d+)?(\/((\.)?(\?)?=?&?[a-zA-Z0-9_-](\?)?)*)*$/i;
if (!urlpatern1.test(url)) {
return false;
}
return true;
}



// 电话号码验证
function isPhone(tel) {
var i, j, strTemp;
strTemp = "0123456789-()#+ ";
for (i = 0; i < tel.length; i++) {
j = strTemp.indexOf(tel.charAt(i));
if (j == -1) {
return false;
}
}
return true;
}
function checkPhone(tel) {
var patrn = /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/;
if (!patrn.exec(tel)) {  
           // errorinfo += "你输入的的客户经办人(2)固定电话格式不正确，请重新输入!n";  
return false;
} else {
return true;
}
}

//移动电话格式
function isMobile(mobile) {
//true 是移动电话
return mobile.match(/^(13[0-9]{9}|15[0-9]{9})$/);
}



//数值检测
function isNumber(name) {
if (name.length == 0) {
return false;
}
for (i = 0; i < name.length; i++) {
if (name.charAt(i) < "0" || name.charAt(i) > "9") {
return false;
}
}
return true;
}

//isNull
function isNull(str) {
if (str == null || str == "") {
return true;
}
var i = 0;
for (i = 0; i < str.length; i++) {
if (str.charAt(i) != " ") {
return false;
}
}
if (i == str.length) {
return true;
}
return false;
}

//英文值检测
function isEnglish(name) {
if (name.length == 0) {
return false;
}
for (i = 0; i < name.length; i++) {
if (name.charCodeAt(i) > 128) {
return false;
}
}
return true;
}
//中文值检测
function isChinese(name) {
if (name.length == 0) {
return false;
}
for (i = 0; i < name.length; i++) {
if (name.charCodeAt(i) > 128) {
return true;
}
}
return false;
}
//身份证验证
function isIDCar(str) {
var patrn = /^(([0-9]{14}[x0-9]{1})|([0-9]{17}[x0-9]{1}))$/;
if (!patrn.exec(str)) {  
          //var errorinfo = "你输入法人代表的身份证号码格式不正确，请输入15位或者18位的身份证号码!n";
return false;
} else {
return false;
}
}

//是非负浮点数字则返回true，否则返回false
function floatChecked(str) {
if (!isNull(str)) {
var re = /^[0-9]\d*\.\d*$/;
return re.test(str);
}else{
  return true;
}
}
//非负整数则返回true，否则返回false
function intChecked(str) {
if (!isNull(str)) {
var re = /^[1-9]\d*$/;
return re.test(str);
}else{
  return true;
}
}




/---------------------


DATE_FORMAT(o.addtime,'%Y-%m-%d') 

/--------------------



function imageShow(image,w,h){

var i=image.width;
var j=image.height;
if(i>w)//实际宽度大于显示的
{
var width_Bili=w/i;//缩小的比列
var height_Bili=h/j;//缩小的比列

var bili=width_Bili;
if(width_Bili<height_Bili)
{
bili=width_Bili;
}
else
{
bili=height_Bili;
}
i=i*bili;
j=j*bili;
}else//实际宽度小于显示的
{
if(j>h)//实际高度大于显示的高度，就要缩
{
bili=h/j;
i=i*bili;
j=j*bili;
}

}

image.width=i;
image.height=j;
}


<!---------move div-------------->


var posX;
var posY;      
var fdiv = document.getElementById("dingwei");          
document.getElementById("title").onmousedown=function(e)
{
    if(!e) e = window.event;  //如果是IE
    posX = e.clientX - parseInt(fdiv.style.left);
    posY = e.clientY - parseInt(fdiv.style.top);
    document.onmousemove = mousemove;          
}
document.onmouseup = function()
{
    document.onmousemove = null;
}
function mousemove(ev)
{
    if(ev==null) ev = window.event;//如果是IE
    fdiv.style.left = (ev.clientX - posX) + "px";
    fdiv.style.top = (ev.clientY - posY) + "px";
}


<div id="dingwei" style="display: none; position: absolute; left: 200px; top: 200px; width: 393; height: 160; z-index: 1; background-color: #FFFFFF; border: solid 1px #CCCCCC;">
<div id="title" style="PADDING-LEFT: 10px; FONT-SIZE: 13px; CURSOR: move; COLOR: #fff; PADDING-TOP: 5px; HEIGHT: 20px; BACKGROUND-COLOR: blue">
xxxxxxxx
</div>
<div>


<!----------------------position x,y------------------------>

    var e = e||window.event;
    var objSrc = e.srcElement;//event source element
    var left = 0;
    var top  = 0;
    while (objSrc.offsetParent){
        left += objSrc.offsetLeft;
        top  += objSrc.offsetTop;
        objSrc    = objSrc.offsetParent;
    }
    left += objSrc.offsetLeft;//source element's offsetTop
    top  += objSrc.offsetTop;//source element's offsetLeft

    mouseOffsetX = left + e.offsetX;

    mouseOffsetY = top + e.offsetY;



<!-------------------------------     ----------------------->

   function set_imgurl_id(path){
    document.getElementById('imgurl_id').innerHTML="";//初始化为空
   var newPreview = document.getElementById('imgurl_id');           
  
          
           
           
   if(path==null||path==""){
   
    //document.getElementById(id_).innerHTML="<img src='<%=path%>/user/images/001.jpg'/>";
    newPreview.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = "<%=path%>/productimg/${product.imgurl}";
    newPreview.style.width = "55px";
    newPreview.style.height = "55px";
  
   }else{
   
  
//value=value.replace(/\\/g,'/');

  //  document.getElementById(id_).innerHTML="<img src='"+value+"' border='12' width='53' height='53'>";
            newPreview.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = path;
           newPreview.style.width = "55px";
           newPreview.style.height = "55px";
   }
  
   }

filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale);