How to use Images for Options in a <select>?

I am wanting a customer to click an image rather than a drop down box for selction.

Form:"frmheelchoice" works fine for drop down text selection,

how ever Form:"frmheelchoice1" will display the images that I want, but if you click the image you want, it will not write to the "Cheel_type" variable, it will submit and call the next file and of course there is no value for "Cheel_type", this is needed to go on. Please help fix the Form:"frmheelchoice1".

<cfoutput>
<form name="frmheelchoice" action="#AHrefString_Root#showdetl.cfm#ID_STRING#&Product_ID=#CProduct_ID#</cfoutput>&event=toe&clear=1" METHOD="POST">
<input type="Hidden" name="stylepic" value="<cfoutput>#stylepic.stylepic#</cfoutput>">
<select name="Cheel_type">
<option value="0">Choose a Heel and press "Next"</option>
<CFOUTPUT query="heel">
<OPTION value="#heel_type#">#heel_descrip#</OPTION>
</CFOUTPUT>
</SELECT><br>
<input type = "button" value = "Next" onclick="checkselection();">
</form>
               
<form name="frmheelchoice1" action="<cfoutput>#AHrefString_Root#showdetl.cfm#ID_STRING#&Product_ID=#CProduct_ID#</cfoutput>&event=toe&clear=1" METHOD="POST">
<input type="Hidden" name="stylepic" value="<cfoutput>#stylepic.stylepic#</cfoutput>">
<CFloop query="heel">
<cfoutput><input type="Image" name="Cheel_type" value="#heel_type#" img src="..\images\#heel_type#.jpg" alt="#heel_descrip#" border="0" onClick="submit">
</CFOUTPUT>
</cfloop>
</form>
         
<script language="javascript">
function checkselection (){
     if (document.frmheelchoice.Cheel_type.value == "0")
          alert('Please select a Heel!');
      else document.frmheelchoice.submit();
}
</script>