window.onload = clearText;

//if the id exists on the page, set the relevant form focus 
function clearText()
{
	if(document.getElementById("cm-37880-37880")){
		var textbox = document.getElementById("cm-37880-37880");
		var textboxValue = textbox.getAttribute("value");
		textbox.onclick = function()
		{
			if(textbox.value = "Join Email List"){
				textbox.value = "";
			}
		}
	} 
}