function clear_head_search()
	{
		document.getElementById("head_find_name").style.color = '#000000';
			if(document.getElementById("head_find_name").value == '请输入姓名')
			{
				document.getElementById("head_find_name").value = '';
			}
	}


function head_search()
	{
		if(check_head_search())
		{
			var head_find_message='';
			var head_find_name=document.getElementById("head_find_name").value;//姓名			
			
			if(head_find_name!=""&&head_find_name!="请输入姓名")
			{
				head_find_message+="，姓名为"+head_find_name;
			}
			
			document.getElementById("head_find_message").value = head_find_message;
			document.getElementById("head_action").value = 'head_search';
			document.head_search_form.submit();	
		}
		
	}

function check_head_search()
	{
	var head_find_name = trim(document.getElementById("head_find_name").value);
	
	if(head_find_name == "")
		{
			alert("姓名不能为空");
			document.getElementById("head_find_name").focus();
			return false;
		}
	return true;
	}
function checkDy()
{
	var dyText=document.getElementById("dyText").value;
	if(trim(dyText)=='请填写您的邮箱' || trim(dyText)=='')
	{
		return false;	
	}
	else
	{
		if(isMail(dyText))
		{
			return true;
		}
		else
		{
			alert("请输入正确的邮箱");	
			return false;
		}
	}
}