単純にする?
domainSearch.cfm
<head>
</head>
<body>
<h2 style="color:Blue">Domain search</h2>
<form name="domainSearch">
www.<input class="search_domain" name="searchString" id="frmURL" value="Please enter your domain" onfocus="if(this.value == 'Please enter your domain') {this.value = '';}" onblur="if (this.value == '') {this.value = 'Please enter your domain';}" type="text" />.com
<font color="#FF0000"><strong>[Search]</strong></font>
</form>
<p>Enter any domain.com, (hint: try "free")</p>
<cfdiv id="resultsDiv" bind="url:searchProcessor.cfm?searchString={searchString}">
</body>
</html>
searchProcessor.cfm
<cfif IsDefined("URL.searchString")>
<cfif URL.searchString eq "Please enter your domain">
<cfoutput></cfoutput>
<cfelseif URL.searchString eq "free">
<cfoutput>Great, #URL.searchString# is available, price $400</cfoutput>
<cfelse>
<cfoutput>Sorry, #URL.searchString# is not available, try again.</cfoutput>
</cfif>
</cfif>