<html>
<head><title>STRING MANUPULATION</title>
<script language="javascript">
var str1,str2;
function clear1()
{
document.getElementById("msg").innerHTML="";
document.getElementById("msg1").innerHTML="";
document.getElementById("msg2").innerHTML="";
document.getElementById("msg3").innerHTML="";
document.getElementById("msg4").innerHTML="";
}
function find_string()
{
str1=new String(f1.txt1.value);
str2=new String(f1.txt2.value);
if(str2=="" ||str1=="" )
{
if(str1=="")
{
document.getElementById("msg1").innerHTML="<b>Enter Main String</b>";
}
else
{
document.getElementById("msg2").innerHTML="<b>Enter Sub String</b>";
}
}
else if(str1.indexOf(str2) < 0)
{
document.getElementById("msg3").innerHTML="<b>String is Not Found</b>";
}
else
{
document.getElementById("msg").innerHTML="<b>Sub String is Fond</b>";
f1.txt3.disabled=false;
f1.txt3.focus();
f1.b1.disabled=true;
f1.b2.disabled=false;
f1.txt3.value="";
}
}
function replace_string()
{
str3=new String(f1.txt3.value);
str1=str1.replace(f1.txt2.value,f1.txt3.value);
document.getElementById("msg").innerHTML="<b>After Replacing String = </b>"+str1;
f1.b1.disabled=false;
f1.b2.disabled=true;
f1.txt3.disabled=true;
}
</script>
</head>
<body>
<h3>PROGRAM 7 : </h3><h4>STRING MANUPULATION</h4>
<form name="f1">
<table>
<tr><td colspan=2>
<font color="red">
<div id="msg1"></div>
</font>
<tr><td>
<b>Enter Main String :</b>
<td><input type="text" name="txt1" onfocus="clear1()"><br/>
<tr><td colspan=2>
<font color="red">
<div id="msg2"></div>
</font>
<tr><td>
<b>Enter Sub String :</b>
<td><input type="text" name="txt2" onfocus="clear1()"><br/>
<tr><td colspan=2>
<font color="green">
<div id="msg4"></div>
</font>
<tr><td><b>Enter Replace String :</b>
<td><input type="text" name="txt3" disabled="true" onblur="clear1()"><br/>
<tr><td>  </td>
<tr>
<td><input type="button" name="b1" value="FIND" onclick="find_string()">
<td><input type="button" name="b2" value="REPLACE" onclick="replace_string()" disabled="true">
<td><input type="reset" name="b3" value="CLEAR" >
<tr><td colspan=2>
<font color="red">
<div id="msg3"></div>
</font>
<font color="green">
<div id="msg"></div>
</font>
</table>
</form>
</body>
</html>
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