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;

}

//-->