Code:
<td align="right"><input class="navmenu" id="return" type="button" value="戻る"  onclick="doProcess(this.id)"></td>
this code, will execute doProcess in IE, but not in FX why?

the doProcess function is

Code:
function doProcess(process){
	var aform = document.forms(0);
	
	alert("javascript called");

	if(process == "return"){
		window.top.location = "manage.html";
	}
}