I want to compare the min and max values between two dropdowns. This script sometimes gives correct result ...and sometimes not... Pls can u answer me whts goin wrong sometimes. -
<html>
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<head>
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<script type='text/JavaScript'>
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function validateBox()
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{
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try
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{ var frm = document.form_srch_sales_basic;
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formMinValue = document.form_srch_sales_basic.txtMinPrice.options[document.form_srch_sales_basic.txtMinPrice.selectedIndex].value;
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formMaxValue = document.form_srch_sales_basic.txtMaxPrice.options[document.form_srch_sales_basic.txtMaxPrice.selectedIndex].value;
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if(formMinValue > formMaxValue)
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{
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alert(formMinValue);
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alert(formMaxValue);
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alert("Your Minimum value is Greater then Maximum Value.Please Re-enter Maximum Value!");
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return false;
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}
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return true;
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}
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catch(e)
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{
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alert(e);
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return false;
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}
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}
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</script>
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</head>
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<body>
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<form name="form_srch_sales_basic" onsubmit="return validateBox();" method ="post" action="view_sales.php">
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<tr>
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<td align="center" width="95"> </td>
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<td align="left" height="25" >Price Range</td>
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</tr>
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<select size="1" name="txtMinPrice">
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<option value="" selected>No Minimum</option>
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<option value="250000">250,000</option>
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<option value="500000">500,000</option>
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<option value="750000">750,000</option>
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<option value="1000000">1,000,000</option>
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<option value="1250000">1,250,000</option>
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<option value="1500000">from $1,500,000</option>
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<option value="2000000">from $2,000,000</option>
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<option value="3000000">3,000,000</option>
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<option value="5000000">5,000,000</option>
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</select>
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<tr>
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<td align="center" width="95" height="6"></td>
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<td align="left" valign="top" height="6"></td>
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</tr>
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<select size="1" name="txtMaxPrice">
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<option value="" selected>No Maximum</option>
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<option value="500000">500,000</option>
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<option value="750000">750,000</option>
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<option value="1000000">1,000,000</option>
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<option value="1250000">1,250,000</option>
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<option value="1500000">1,500,000</option>
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<option value="2000000">2,000,000</option>
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<option value="3000000">3,000,000</option>
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<option value="5000000">5,000,000</option>
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<option value="8000000">8,000,000</option>
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</select>
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>
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3  5991 
Instead of comparing the string value, you need to compare the integer values using parseInt, otherwise "1000000" will be regarded as less than "750000".
Modify ur code, use eval() function at time of comparison.
like below - <script type='text/JavaScript'>
-
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function validateBox()
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{
-
-
try
-
{
-
var frm = document.form_srch_sales_basic;
-
formMinValue = document.form_srch_sales_basic.txtMinPrice.options[document.form_srch_sales_basic.txtMinPrice.selectedIndex].value;
-
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formMaxValue = document.form_srch_sales_basic.txtMaxPrice.options[document.form_srch_sales_basic.txtMaxPrice.selectedIndex].value;
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if(eval(formMinValue) > eval(formMaxValue))
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{
-
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alert("Your Minimum value is Greater then Maximum Value.Please Re-enter Maximum Value!");
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return false;
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}
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return true;
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}
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catch(e)
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{
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alert(e);
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return false;
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}
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}
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</script>
Modify ur code, use eval() function at time of comparison.
You should avoid eval wherever possible. parseInt would be fine here.
PS. don't forget those code tags.
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