Common Javascript Functions

The software interface uses the WEB interface, so Javascript is required. Some general JS functions are sorted out below :)

/* 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 ExChgCls (o, a, B) {// switch the className of the object
O. className = o. className =? B:;
}
Function ExChgHtml (o, a, B) {// switch the innerHTML of the object
O. innerHTML = o. innerHTML =? B:;
}
Function Oh (o, s) {// output 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;
}
Function Ob (o) {// get an object
Return document. getElementById (o )? Document. getElementById (o): o;
}
Function IsSubStr (p, s) {// determines if 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 to share the same form with multiple buttons, where: o is the ID of the Form B is the hidden input ID (the value is provided by the user to determine the type of the submitted action) s submits the action type for the user
Ob (B). value = s;
Ob (o). submit ();
}

/* 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 = "loading data. Please wait ......";
// Sw2 ("OpMsg ");
}