Re:Javascript常用代码

<!--

function Trim(aStr) {
var rtn = (aStr == null) ? "" : aStr.replace(/^\s{1,}/, "").replace(/\s{1,}$/, "");
return rtn;
}

function getValueById(pObjID){
var obj=document.getElementById(pObjID);
try{
return Trim(obj.value);
}catch(e){
alert("Not found " +pObjID);
}
}

function getInnerHtmlById(pObjID){
var obj=document.getElementById(pObjID);
try{
return obj.innerHTML;
}catch(e){
alert("Not found " +pObjID);
}
}

function checkDecimal(theValue)
{
if (theValue=="")
return false;
if (theValue.indexOf(" ")>=0)
return false;
if (isNaN(theValue))
return false;
if (parseInt(theValue)<0)
return false;
return true;
}

function setObjectFocus(objId)
{
var obj=document.getElementById(objId);
obj.focus();
}
function setObjectShow(objId)
{
var obj=document.getElementById(objId);
obj.style.display='block';
}
function setObjectHidden(objId)
{
var obj=document.getElementById(objId);
obj.style.display='none';
}
function setSelectValue(objId,selectValue)
{

var sObj=document.getElementById(objId);
var ops=sObj.getElementsByTagName('option');
for(var i=0;i<ops.length;i++)
{
if(ops[i].value==selectValue)
{
ops[i].selected=true;
return;
}
}
}
function getSelectValue(objId)
{
var sObj=document.getElementById(objId);
try
{
return sObj.options[sObj.selectedIndex].value;
}
catch(e)
{
return null
}
}
function getCheckValue(objId)
{
var checkObj = document.getElementById(objId);
return checkObj.checked;
}

//-->

转载于:https://www.cnblogs.com/zhangh/archive/2007/08/23/867001.html