Hi all...


Can anyone discuss briefly about the Calculations and other Operations on Field Values.

Thanks & Regards
P.vinothkumar

Hi all...


How do I sum form field values together?

Thanks...

Hi all...


var a = '1';
var b = '2';

var c = a + b;

Or This:

var a = '1';
var b = '2';

var c = (a-0) + (b-0);

Thanks....

Hi all...

How do I add form elements together, I have tried many different ways but I always either get NaN or a concenated string (ie 15 + 16 + 1 + 52 = 1615152 != 84)?

Thanks....

Hi all...

How do I add form elements together, I have tried many different ways but I always either get NaN or a concenated string (ie 15 + 16 + 1 + 52 = 1615152 != 84)?

<form>
<input type="text" name="field1" value="15">
<input type="text" name="field2" value="16">
<input type="text" name="field3" value="1">
<input type="text" name="field4" value="52">
<input type="button" value="Sum" onClick="sum(this.form)">
</form>

<script language="JavaScript"><!--
function sum(objRef) {
var result = 0;
result =+ objRef.field1.value - 0;
result =+ objRef.field2.value - 0;
result =+ objRef.field3.value - 0;
result =+ objRef.field4.value - 0;
alert(result);
}
//--></script>

Thanks....

Hi all....

How do you sort a number of lines of information in a textarea?

Thanks....

Hi all....


<script language="JavaScript"><!--
var splitIndex = 0;
var splitArray = new Array();

function splits(string,text) {
var strLength = string.length, txtLength = text.length;
if ((strLength == 0) || (txtLength == 0)) return;

var i = string.indexOf(text);
if ((!i) && (text != string.substring(0,txtLength))) return;
if (i == -1) {
splitArray[splitIndex++] = string;
return;
}

splitArray[splitIndex++] = string.substring(0,i);

if (i+txtLength < strLength)
splits(string.substring(i+txtLength,strLength),tex t);

return;
}

function split(string,text) {
splitIndex = 0;
splits(string,text);
}

function join(arrayName) {
var temp = '';
for (var i=0; i<splitIndex; i++)
temp += arrayName[i] + '\n';
if (escape(temp.substring(0,1)) == '%0A')
return temp.substring(1,temp.length);
else
return temp;
}

function sort(arrayName) {
for (var i=0; i<(splitIndex-1); i++)
for (var j=i+1; j<splitIndex; j++)
if (arrayName[j] < arrayName[i]) {
var dummy = arrayName[i];
arrayName[i] = arrayName[j];
arrayName[j] = dummy;
}
}

function sorttext() {
split(document.myform.mytext.value,'\n');
sort(splitArray);
document.myform.mytext.value = join(splitArray);
}
//--></script>

<script language="JavaScript1.1"><!--
function split(string,text) {
splitArray = string.split(text);
splitIndex = splitArray.length;
}
//--></script>


<form name="myform">
<textarea name="mytext" rows="9" cols="8">
Lion
Tiger
Bear
Fox
Rabbit
Anteater
Snake
Dog
Cat
</textarea>
<p><input type="button" value="sort" onClick="sorttext()">
</form>

Thanks....

Hi all...

How can I extract just the file name from a forms file upload field?

Thanks...

Hi all...


<script language="JavaScript"><!--
function extract(what) {
if (what.indexOf('/') > -1)
answer = what.substring(what.lastIndexOf('/')+1,what.length);
else
answer = what.substring(what.lastIndexOf('\\')+1,what.lengt h);
alert(answer);
}
//--></script>

<form name="myform">
<input type="file" name="myfile">
<input type="button" value="Test" onClick="extract(this.form.myfile.value)">
</form>

Thanks...

Hi all...


How do I capture a character that is typed into a textarea and change it to another character?


Thanks....

Hi all...

How do I capture a character that is typed into a textarea and change it to another character?


<SCRIPT LANGUAGE="JavaScript"><!--
function replace(string,text,by) {
// Replaces text with by in string
var strLength = string.length, txtLength = text.length;
if ((strLength == 0) || (txtLength == 0)) return string;

var i = string.indexOf(text);
if ((!i) && (text != string.substring(0,txtLength))) return string;
if (i == -1) return string;

var newstr = string.substring(0,i) + by;

if (i+txtLength < strLength)
newstr += replace(string.substring(i+txtLength,strLength),te xt,by);

return newstr;
}
//--></SCRIPT>

<FORM NAME="myForm">
<TEXTAREA COLS="20" ROWS="10" onChange="this.value=replace(this.value,'x','y')"> </TEXTAREA>
</FORM>

Thanks...

Hi all...


How do I make two dropdown menus, where the result of the selection of both dropdown menus will be shown in a text field?


Thanks...

Hi all...


How do I make two dropdown menus, where the result of the selection of both dropdown menus will be shown in a text field?


<SCRIPT LANGUAGE="JavaScript"><!--
function updateTextField() {
document.form3.result.value =
document.form1.select1.options[document.form1.select1.selectedIndex].value + ' ' +
document.form2.select2.options[document.form2.select2.selectedIndex].value
}
//--></SCRIPT>

<FORM NAME="form1">
<SELECT NAME="select1" onChange="updateTextField()">
<OPTION VALUE="0">Zero
<OPTION VALUE="1">One
<OPTION VALUE="2">Two
<OPTION VALUE="3">Three
<OPTION VALUE="4">Four
<OPTION VALUE="5">Five
<OPTION VALUE="6">Six
</SELECT>
</FORM>

<FORM NAME="form2">
<SELECT NAME="select2" onChange="updateTextField()">
<OPTION VALUE="Zero">0
<OPTION VALUE="One">1
<OPTION VALUE="Two">2
<OPTION VALUE="Three">3
<OPTION VALUE="Four">4
<OPTION VALUE="Five">5
<OPTION VALUE="Six">6
</SELECT>
</FORM>

<FORM NAME="form3">
<INPUT TYPE="TEXT" NAME="result">
</FORM>

Thanks...

Hi all...


How can I compare two selected items from two different select form fields?


Thanks...

Hi all...


<SCRIPT LANGUAGE="JavaScript"><!--
function test(what) {
if (what.select1.options[what.select1.selectedIndex].value == what.select2.options[what.select2.selectedIndex].value)
alert('They are the same');
}
--></SCRIPT>

<FORM NAME="myForm">

<SELECT NAME="select1">
<OPTION VALUE="abc">123
<OPTION VALUE="def">456
<OPTION VALUE="ghi">789
</SELECT>


<SELECT NAME="select2">
<OPTION VALUE="abc">123
<OPTION VALUE="def">456
<OPTION VALUE="ghi">789
</SELECT>

<INPUT TYPE="BUTTON" VALUE="SUBMIT" onClick="test(this.form)">

</FORM>

Thanks....

Hi all....


How can I constantly check to see if and when the user has entered a specific word in a text box?


Thanks....

Hi all...


How can I constantly check to see if and when the user has entered a specific word in a text box?


<FORM NAME="myForm">
<INPUT TYPE="TEXT" NAME="myText">
</FORM>

<SCRIPT LANGUAGE="JavaScript"><!--
function monitorText() {
if (document.myForm.myText.value.indexOf('skip') > -1)
alert('detected skip');
else
setTimer('monitorText()',1000); // checks field every 1000 milliseconds
}

monitorText();
//--></SCRIPT>


Thanks...

Hi all...


How can you remove space from a text field?

Thanks....

Hi all....


<SCRIPT LANGUAGE="JavaScript"><!--
function replace(string,text,by) {
// Replaces text with by in string
var strLength = string.length, txtLength = text.length;
if ((strLength == 0) || (txtLength == 0)) return string;

var i = string.indexOf(text);
if ((!i) && (text != string.substring(0,txtLength))) return string;
if (i == -1) return string;

var newstr = string.substring(0,i) + by;

if (i+txtLength < strLength)
newstr += replace(string.substring(i+txtLength,strLength),te xt,by);

return newstr;
}
//--></SCRIPT>

<FORM>
<INPUT NAME="myField" TYPE="TEXT" VALUE="1 2 3 4 5 6 7 8 9 0">
<INPUT TYPE="BUTTON" VALUE="Remove Spaces" onClick="this.form.myField.value=replace(this.form .myField.value,' ','')">
</FORM>

Thanks....

Hi all....


How can I add up the values in several text fields and place the result in another text field?


Thanks....