关于javascript的删除确认的几种实现

<script language="JavaScript">
function delete_confirm(e)
{
	if (event.srcElement.outerText == "删除") event.returnValue = confirm("您确认执行删除操作么？");
}
document.onclick = delete_confirm;
</script>

//可以实现对链接删除的确认，即"删除"两字链接
<script language="JavaScript">
function delete_confirm(e)
{
	if (event.srcElement.value == "删除") event.returnValue = confirm("您确认执行删除操作么？");
}
document.onclick = delete_confirm;
</script>

//可以实现对按钮删除的确认
<script language="JavaScript">
function delete_confirm(e)
{
	if (event.srcElement.value == "删除") event.returnValue = confirm("您确认执行删除操作么？");
	else if (event.srcElement.outerText == "删除") event.returnValue = confirm("您确认执行删除操作么？");
}
document.onclick = delete_confirm;
</script>

//实现对链接或按钮删除的确认
<script language="JavaScript">
function delete_confirm(e)
{
	if (event.srcElement.outerText == "删除" || event.srcElement.value == "删除") event.returnValue = confirm("删除后将不能恢复，您确认执行删除操作么？");
}
document.onclick = delete_confirm;
</script>