Custom function for selenium IDE. For install Option > Options > Add js path in Selenium core extension location To get selenium IDE Selenium IDE is only work for Firefox http://docs.seleniumhq.org/download/

user-extension.js

var gotoLabels= {};
var whileLabels = {};


Selenium.prototype.reset = function() {
    this.initialiseLabels();
    this.defaultTimeout = Selenium.DEFAULT_TIMEOUT;
    this.browserbot.selectWindow("null");
    this.browserbot.resetPopups();
}



Selenium.prototype.initialiseLabels = function()
{
    gotoLabels = {};
    whileLabels = { ends: {}, whiles: {} };
    var command_rows = [];
    var numCommands = testCase.commands.length;
    for (var i = 0; i < numCommands; ++i) {
        var x = testCase.commands[i];
        command_rows.push(x);
    }
    var cycles = [];
    var forEachCmds = [];
    for( var i = 0; i < command_rows.length; i++ ) {
        if (command_rows[i].type == 'command')
        switch( command_rows[i].command.toLowerCase() ) {
            case "label":
                gotoLabels[ command_rows[i].target ] = i;
                break;
            case "while":
            case "endwhile":
                cycles.push( [command_rows[i].command.toLowerCase(), i] )
                break;
            case "foreach":
            case "endforeach":
                forEachCmds.push( [command_rows[i].command.toLowerCase(), i] )
                break;
        }
    }
    var i = 0;
    while( cycles.length ) {
        if( i >= cycles.length ) {
            throw new Error( "non-matching while/endWhile found" );
        }
        switch( cycles[i][0] ) {
            case "while":
                if( ( i+1 < cycles.length ) && ( "endwhile" == cycles[i+1][0] ) ) {
                    whileLabels.ends[ cycles[i+1][1] ] = cycles[i][1];
                    whileLabels.whiles[ cycles[i][1] ] = cycles[i+1][1];
                    cycles.splice( i, 2 );
                    i = 0;
                } else ++i;
                break;
            case "endwhile":
                ++i;
                break;
        }
    }

}

Selenium.prototype.continueFromRow = function( row_num )
{
    if(row_num == undefined || row_num == null || row_num < 0) {
        throw new Error( "Invalid row_num specified." );
    }
    testCase.debugContext.debugIndex = row_num;
}

Selenium.prototype.doLabel = function(){};

Selenium.prototype.doGotoLabel = function( label )
{
    if( undefined == gotoLabels[label] ) {
        throw new Error( "Specified label '" + label + "' is not found." );
    }
    this.continueFromRow( gotoLabels[ label ] );
};

Selenium.prototype.doGoto = Selenium.prototype.doGotoLabel;

Selenium.prototype.doGotoIf = function( condition, label )
{
    if( eval(condition) ) this.doGotoLabel( label );
}

Selenium.prototype.doWhile = function( condition )
{
    if( !eval(condition) ) {
        var last_row = testCase.debugContext.debugIndex;
        var end_while_row = whileLabels.whiles[ last_row ];
        if( undefined == end_while_row ) throw new Error( "Corresponding 'endWhile' is not found." );
        this.continueFromRow( end_while_row );
    }
}

Selenium.prototype.doEndWhile = function()
{
    var last_row = testCase.debugContext.debugIndex;
    var while_row = whileLabels.ends[ last_row ] - 1;
    if( undefined == while_row ) throw new Error( "Corresponding 'While' is not found." );
    this.continueFromRow( while_row );
}

Selenium.prototype.doPush= function(value, varName)
{
    if(!storedVars[varName]) {
        storedVars[varName] = new Array();
    }
    if(typeof storedVars[varName] !== 'object') {
        throw new Error("Cannot push value onto non-array " + varName);
    } else {
        storedVars[varName].push(value);
    }
}


Selenium.prototype.doLoadXml= function(path)
{
	if(path == ""){
		throw new Error("Can not proccess XML becasue path is not given ");
	}else{
		var xmlDoc=loadXMLDoc(path);
	}
  
   var x=xmlDoc.getElementsByTagName("url");

 for (i=0;i<x.length;i++)
  {
  document.write(x[i].childNodes[0].nodeValue);
  document.write("<br>");
  } 
}



Selenium.prototype.doRandomString = function( options, varName ) {

    var length = 8;
    var type   = 'alphanumeric';
    var o = options.split( '|' );
    for ( var i = 0 ; i < 2 ; i ++ ) {
        if ( o[i] && o[i].match( /^\d+$/ ) )
            length = o[i];

        if ( o[i] && o[i].match( /^(?:alpha)?(?:numeric)?$/ ) )
            type = o[i];
    }

    switch( type ) {
        case 'alpha'        : storedVars[ varName ] = randomAlpha( length ); break;
        case 'numeric'      : storedVars[ varName ] = randomNumeric( length ); break;
        case 'alphanumeric' : storedVars[ varName ] = randomAlphaNumeric( length ); break;
        default             : storedVars[ varName ] = randomAlphaNumeric( length );
    };
};



function randomNumeric ( length ) {
    return generateRandomString( length, '0123456789'.split( '' ) );
}

function randomAlpha ( length ) {
    var alpha = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.split( '' );
    return generateRandomString( length, alpha );
}

function randomAlphaNumeric ( length ) {
    var alphanumeric = '01234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.split( '' );
    return generateRandomString( length, alphanumeric );
}

function generateRandomString( length, chars ) {
    var string = '';
    for ( var i = 0 ; i < length ; i++ )
        string += chars[ Math.floor( Math.random() * chars.length ) ];
    return string;
}


/**
**/

Selenium.prototype.doGetOnlyNumbers = function( locator, varName ) {
	// If text looks like 8 Pages
	var text = this.getText(locator);
	var count = parseInt(text,10);
	storedVars[ varName ] = count;
};

Selenium.prototype.doGetLPageNumbers = function( locator, varName ) {
   // If Test looks like 79 Results,  8 Pages
	var text = this.getText(locator);	
	var tr = text.replace(/ /g,'').split(',');
	storedVars[ varName ] = (parseInt(tr[1],10));

};