Ecirce: Undo and Redo in forms - goforwardgobackwardform Version 0.9


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Undo and Redo in forms - goforwardgobackward Form v 0.9

not

related:

goforwardgobackward Form v 1.0

Demo: To see how it works change the textfields and click "undo" or "redo".
input1:
input2:
input3:

Browser: ie4+,ns4+ (for both browser:only input elements type=text);
Contributor: © 2003 Simon Carl Wessely
Script-size: 1.7 kb
uploaded: 17 07 03
last modified: 17 07 03

Step 1: Paste the following code between
the <body> tag and </body> tag:

var currentover;
var formlength=3;
function theonload(){
for(i=0;i<formlength;i++){

document.inputform[i].counterarray=0
document.inputform[i].inputarray=[]
document.inputform[i].inputarray[0]=document.inputform[i].value
document.inputform[i].onchange=catchVal
}
}

function catchVal(){

this.counterarray++;
this.inputarray[this.counterarray]=this.value
currentover=this;
}

function goback(){
if(typeof currentover=='undefined')return;
currentover.counterarray--;
if(typeof currentover.inputarray[currentover.counterarray]!='undefined')
currentover.value=currentover.inputarray[currentover.counterarray]
else currentover.counterarray++;
}

function goforward(){
if(typeof currentover=='undefined')return;
currentover.counterarray++;
if(typeof currentover.inputarray[currentover.counterarray]!='undefined')
currentover.value=currentover.inputarray[currentover.counterarray]
else currentover.counterarray--;
}
window.onload=theonload;
</script>

<form action="" method="" target="" name="inputform">
input1:<input type="Text" name="input0" value="input1" size="" maxlength="">
<br>
input2:<input type="Text" name="input0" value="" size="" maxlength="">
<br>
input3:<input type="Text" name="input0" value="" size="" maxlength="">
<br>

<br>

Step 2: Enter the correct number of your form elements