You may also try this to skip the coding...
<form action="#" onsubmit="return false;">
<input type="text" value="Email" name="Email"
style="color:grey;text-align:left;background:white"
onfocus="this.style.color = '#000';"
onblur="this.style.color = '#aaa';" />
</form>
Dev.Opera — FOLLOW THE STANDARDS, BREAK THE RULES...