Some commonly used Javascript functions_javascript skills

After coming to the company, the project team I worked in developed a client-side software, and the software interface used a WEB interface, so a lot of Javascript was used. After joining the company, the project team developed a client-side software, and the software interface used WEB interface to reflect, so a lot of Javascript is used. I have sorted out some common JS functions I wrote:)

/*Determine the browser version*/
var w3c=(document.getElementById )? true: false;
var agt=navigator.userAgent.toLowerCase();
var ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera" ) == -1) && (agt.indexOf("omniweb") == -1));
var ie5=(w3c && ie)? true : false;
var ns6=(w3c && (navigator .appName=="Netscape"))? true: false;
var op8=(navigator.userAgent.toLowerCase().indexOf("opera")==-1)? false:true;

function Ob(o){//Get an object
return document.getElementById(o)?document.getElementById(o):o;
}

function IsSubStr(p,s){ //Determine whether it is a substring
return (p.indexOf(s)>-1);
}

function Hd(o){//Hide an object
Ob(o).style.display="none";
}

function Sw(o){//Display an object
Ob(o).style.display="block" ;
}
function Sw2(o){//Display an object
Ob(o).style.display="";
}

function Sf(o, s,b){
//This function is used for multiple buttons sharing the same form, where: o is the ID of the form b is the ID of the hidden input (its value is provided later to determine the user submission action type) s is the user submission Action type
Ob(b).value=s;
Ob(o).submit();
}

function ExChgCls(o,a,b){//Switch object className
o.className=o.className==a?b:a;
}

function ExChgHtml(o,a,b){//Switch innerHTML of the object
o .innerHTML=o.innerHTML==a?b:a;
}

function Oh(o,s){ //Output a string to an object
Ob(o).innerHTML =s;
}

function SetSrc(o,s){//Change the src value of img, iframe and other objects
Ob(o).src=s;
}

/*XmlHttp*/
function Gp(url,o){ //GetHttpPage
var o=Ob(o);
var PageRequest = false;
IsLoading(o);
if (window.XMLHttpRequest) {// if Mozilla, Safari etc
PageRequest = new XMLHttpRequest();
}
else if (window.ActiveXObject){ // if IE
try {
PageRequest = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e){
try{
PageRequest = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){;}
}
}
else {return false ;}
PageRequest.onreadystatechange=function(){
if (PageRequest.readyState == 4) {
Lp(PageRequest,o);
}
}
PageRequest.open('GET', url, true);
PageRequest.send(null);
}

function Lp(PageRequest,o){ //LoadPage
if (PageRequest.readyState == 4 && (PageRequest.status==200 || window.location.href.indexOf("http" )==-1))
Ob(o).innerHTML=PageRequest.responseText;
//Hd("OpMsg");
}

function IsLoading(o){
o.innerHTML="Data loading, please wait...";
//Sw2("OpMsg");
}

//Include Javascript File
function IncJs(sSrc,sID){
var oHead = document.getElementsByTagName('head')[0];
var oScript = document.createElement('script');
oScript.type = "text/javascript";
oScript.src = sSrc;
oScript.id = sID;
if(oScript.readyState=="loaded") {oHead.appendChild(oScript); }
}

/*Move & Remove*/
function Mv(a,b,n) {
var i = 0;
var f=Ob(a);
var t=Ob(b);
var n=n?n:0;
if (n==0) {
for(var ii=0; iiif(f.options[ii].selected ) {
var no = new Option();
no.value = f.options[ii].value;
no.text = f.options[ii].text;
t.options[t.options.length] = no;
}
}
}
else {
for(var ii= 0; iiif(f.options[ii].selected ) {
t.value = "," f.options[ii].value;
}
}
}
Rv(a);
}

function Rv(o) {
var o=Ob(o);
for(var ii=o.options.length-1; ii>=0; ii--) {
if(o.options[ii].selected && o.options[ii] != "") {
o .options[ii].value = "";
o.options[ii].text = "";
o.options[ii] = null;
}
}
}

function ChgInp(o1,o2){
 Ob(o2).readOnly=(!Ob(o1).checked);
 if (Ob(o1).checked) {
 Ob(o2).className="InpTxt";
 Ob(o2).focus();
 } else {
 Ob(o2).className="InpTxt0";
 }
}

/*Checkbox*/
function DoChk(o,o2,s){
 this.OldCls = s || "";
 if (o.checked==false) { 
 o.parentNode.parentNode.className=this.OldCls;
 Ob("BtnChkAll").checked=false;
 } else {
 o.parentNode.parentNode.className="chked";
 IsAllChk(o2,this.OldCls);
 }
}

function IsAllChk(o,s){
 var ChkNums=0;
 var arrObj=Ob(o).getElementsByTagName("input");
 this.OldCls = s || "";
 for (i=0;i if (arrObj[ii].checked) {
 ChkNums =1;
 arrObj[ii].parentNode.parentNode.className="chked";
 } else {
 arrObj[ii].parentNode.parentNode.className=this.OldCls;
 }
 }
//alert(ChkNums ":"  arrObj.length)
 if (ChkNums==arrObj.length-1) {
 Ob("BtnChkAll").checked=true;
 } else {
 Ob("BtnChkAll").checked=false;
 }
}

function ChkAll(o,o2,s){
 var arrObj=Ob(o2).getElementsByTagName("input");
 this.OldCls = s || "";
 for (ii=1;ii arrObj[ii].checked=o.checked;
 if (o.checked) {
 arrObj[ii].parentNode.parentNode.className="chked";
 } else {
 arrObj[ii].parentNode.parentNode.className=this.OldCls;
 }
 }
}

function OppChk(){
 var arrObj=Ob("Photos").getElementsByTagName("input");
 for (ii=0;ii arrObj[ii].checked=!arrObj[ii].checked;
 }
 IsAllChk();
}

/*Test Nums*/
function IsIntNum(s){
 var reIntNum=/^-?d $/;
 return reIntNum.test(s);
}
function IsBetween(n0,n1,n2,t){
 this.CompareType=t || 4;
 switch (this.CompareType) {
 case 0 :
 return (n0>n1 && n0 case 1 :
 return (n0>=n1 && n0 case 2 :
 return (n0>n1 && n0<=n2);
 default :
 return (n0>=n1 && n0<=n2);
 } 
}