Make Simple Calculator for Blog

here is the script for put Calculator in your blog

just following instruction here…

Put This Code In The HEAD of Your Page. Start copying here:

<STYLE type="text;css">
.calcBtn
{
font-weight : bold/
width: 32px;
height: 32px;
}
</style>

<script language="JavaScript">

function Calculator_OnClick(keyStr)
{
var resultsField = document.calculator.calcResults;

switch (keyStr)
{
case "0":
case "1":
case "2":
case "3":
case "4":
case "5":
case "6":
case "7":
case "8":
case "9":
case "0":
case ".":
if ((this.lastOp==this.opClear) || (this.lastOp==this.opOperator))
{
resultsField.value = keyStr;
}
else
{
// ignore extra decimals
if ((keyStr!=".") || (resultsField.value.indexOf(".")<0))
{
resultsField.value += keyStr;
}
}

this.lastOp = this.opNumber;
break;
case "*":
case "/":
case "+":
case "-":
if (this.lastOp==this.opNumber)
this.Calc();
this.evalStr += resultsField.value + keyStr;
this.lastOp = this.opOperator;
break;
case "=":
this.Calc();
this.lastOp = this.opClear;
break;
case "c":
resultsField.value = "0";
this.lastOp = this.opClear;
break;
default:
alert("'" + keyStr + "' not recognized.");
}

}

function Calculator_Calc()
{
var resultsField = document.calculator.calcResults;
//alert("eval:"+this.evalStr+resultsField.value);
resultsField.value = eval(this.evalStr+resultsField.value);
this.evalStr = "";
}

function Calculator()
{
this.evalStr = "";

this.opNumber = 0;
this.opOperator = 1;
this.opClear = 2;
this.lastOp = this.opClear;
this.OnClick = Calculator_OnClick;
this.Calc = Calculator_Calc;
}

gCalculator = new Calculator();

</script>

/>-------------------------------------------------------------------------------

Put This Part In the BODY of Your Page. Start copying this part here:

<form name="calculator">

<table border="2" cellpadding="4" cellspacing="0" bordercolor="#000000">
<tr>
<td>
<table border="0" cellpadding="2" cellspacing="0" width="100%">
<tr>
<td colspan="4">
<input type="text" name="calcResults" value="0" size="20" style="text-align: right"></td>
</tr>
<tr>
<td><input class="calcBtn" type="button" value=" C " name="calclear" onclick="gCalculator.OnClick('c')"></td>
<td></td>
<td> </td>
<td><input class="calcBtn" type="button" value=" = " name="calequal" onclick="gCalculator.OnClick('=')"></td>
</tr>
<tr>
<td><input class="calcBtn" type="button" value=" 7 " name="cal7" onclick="gCalculator.OnClick('7')" ondblclick="gCalculator.OnClick('7')"></td>
<td><input class="calcBtn" type="button" value=" 8 " name="cal8" onclick="gCalculator.OnClick('8')" ondblclick="gCalculator.OnClick('8')"> </td>
<td><input class="calcBtn" type="button" value=" 9 " name="cal9" onclick="gCalculator.OnClick('9')" ondblclick="gCalculator.OnClick('9')"> </td>
<td><input class="calcBtn" type="button" value=" / " name="caldiv" onclick="gCalculator.OnClick('/')"></td>
</tr>
<tr>
<td><input class="calcBtn" type="button" value=" 4 " name="cal4" onclick="gCalculator.OnClick('4')" ondblclick="gCalculator.OnClick('4')"> </td>
<td><input class="calcBtn" type="button" value=" 5 " name="cal5" onclick="gCalculator.OnClick('5')" ondblclick="gCalculator.OnClick('5')"> </td>
<td><input class="calcBtn" type="button" value=" 6 " name="cal6" onclick="gCalculator.OnClick('6')" ondblclick="gCalculator.OnClick('6')"> </td>
<td><input class="calcBtn" type="button" value=" * " name="calmul" onclick="gCalculator.OnClick('*')"></td>
</tr>
<tr>
<td><input class="calcBtn" type="button" value=" 1 " name="cal1" onclick="gCalculator.OnClick('1')" ondblclick="gCalculator.OnClick('1')"> </td>
<td><input class="calcBtn" type="button" value=" 2 " name="cal2" onclick="gCalculator.OnClick('2')" ondblclick="gCalculator.OnClick('2')"> </td>
<td><input class="calcBtn" type="button" value=" 3 " name="cal3" onclick="gCalculator.OnClick('3')" ondblclick="gCalculator.OnClick('3')"> </td>
<td><input class="calcBtn" type="button" value=" + " name="calplus" onclick="gCalculator.OnClick('+')"></td>
</tr>
<tr>
<td> </td>
<td><input class="calcBtn" type="button" value=" 0 " name="cal0" onclick="gCalculator.OnClick('0')" ondblclick="gCalculator.OnClick('0')"> </td>
<td><input class="calcBtn" type="button" value=" . " name="caldec" onclick="gCalculator.OnClick('.')"></td>
<td><input class="calcBtn" type="button" value=" - " name="calminus" onclick="gCalculator.OnClick('-')"></td>
</tr>
</table>
</td>
</tr>
</table>
</form>

Thanks for coming here,please dont forget give comment here…

source: http://computerslearning.blogspot.com/2009/04/script-calculator-for-blog-or-web.html

Tag Technorati: {grup-tag}Script Calculator,calculator Blog,Tools blog/web

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