function imgCheck()
{
	var index = document.all.dlActiveName.selectedIndex;
	if(index == 0)
	{
		alert("请选择活动名！");
		document.all.dlActiveName.focus();
		return false;
	}
	index = document.all.dlServer.selectedIndex;
	if(index == 0)
	{
		alert("请选择服务器！");
		document.all.dlServer.focus();
		return false;
	}
	else if(document.all.txtUserName.value.replace(/ /ig,"") == "")
	{
		alert("请输入帐号！");
		document.all.txtUserName.focus();
		return false;
	}
	else if(!isUserName(document.all.txtUserName.value.replace(/ /ig,"")))
	{
		alert("请输入有效的帐号！");
		document.all.txtUserName.select();
		return false;
	}
	else if(document.all.txtPwd.value.replace(/ /ig,"") == "")
	{
		alert("请输入密码！");
		document.all.txtPwd.focus();
		return false;
	}
	else if(document.all.txtRole.value.replace(/ /ig,"") == "")
	{
		alert("请输入角色名称！");
		document.all.txtRole.focus();
		return false;
	}
	else if(!checkZYS(document.all.txtRole))
	{
		alert("请输入有效的角色名称！");
		document.all.txtRole.select();
		return false;
	}
	else if(document.all.txtTele.value.replace(/ /ig,"")=="")
	{
		alert("请输入联系电话！");
		document.all.txtTele.focus();
		return false;
	}
	else if(document.all.txtEmal.value.replace(/ /ig,"")=="")
	{
		alert("请输入Email");
		document.all.txtEmal.focus();
		return false;
	}
	else if(!isEmail(document.all.txtEmal.value))
	{
		alert("请输入有效的Email");
		document.all.txtEmal.select();
		return false;
	}
}
//email地址正确不正确
function isEmail(mail)
{
	var str=mail;
	var filter=/^.+@.+\..{2,3}$/
	if (filter.test(str))
		testresults=true
	else
	{
		testresults=false
	}
	return (testresults)
}
//只能输入数字和-(电话号码的判断)
function isTele()
{
	if ( !(((window.event.keyCode >= 48) && (window.event.keyCode <= 57)) || (window.event.keyCode == 13) || (window.event.keyCode == 46) || (window.event.keyCode == 45) || (window.event.keyCode==45)))
	{
		window.event.keyCode = 0 ;
	}
} 
//帐号只能是字母，数字下划线
function isUserName(str)
{
	return !/[^0-9a-zA-Z_]/g.test(str);
}
//只能输入数字，字母下划线和汉字
function checkZYS(obj)
{
	var rw3=obj.value;
	var patrnN=/^[^\s~`!@#%&=;:\/\$\(\)\{\}<>\|\^\+\[\]\?\.\,\*\-]*$/;
	return patrnN.exec(rw3);
}
//后台添加管理员时用户名不能为空
function checkClick(txtBox)
{
	if(txtBox.value.replace(/ /ig,"") =="")
	{
		alert("请输入用户名！");
		txtBox.focus();
		return false;
	}
	else if(!checkZYS(txtBox))
	{
		alert("用户名只能由字母，数字，下划线和汉字组成！");
		txtBox.select();
		return false;
	}
}
//后台管理员登录时的验证
function checkAdminLogin(txtName,txtPwd)
{
	if(txtName.value.replace(/ /ig,"") =="")
	{
		alert("请输入用户名！");
		txtName.focus();
		return false;
	}
	else if(txtPwd.value.replace(/ /ig,"") =="")
	{
		alert("请输入密码！");
		txtPwd.focus();
		return false;
	}
}
//后台修改密码所做的验证
function checkPwdUp(txtOldPwd,txtNewPwd,txtAgainPwd)
{
	if(txtOldPwd.value.replace(/ /ig,"") =="")
	{
		alert("请输入旧密码！");
		txtOldPwd.focus();
		return false;
	}
	else if(txtNewPwd.value.replace(/ /ig,"") =="")
	{
		alert("请输入新密码！");
		txtNewPwd.focus();
		return false;
	}
	else if(txtAgainPwd.value.replace(/ /ig,"") =="")
	{
		alert("请输入确认密码！");
		txtAgainPwd.focus();
		return false;
	}
	else if(txtNewPwd.value.replace(/ /ig,"") != txtAgainPwd.value.replace(/ /ig,""))
	{
		alert("您两次输入的密码不一致，请重新输入！");
		txtNewPwd.select();
		return false;
	}
}
//添加奖项时的判断
function checkAddAward(txtAward,txtOrder,txtName)
{
	if(txtAward.value.replace(/ /ig,"") =="")
	{
		alert("请输入奖项！");
		txtAward.focus();
		return false;
	}
	else if(!checkZYS(txtAward))
	{
		alert("奖项只能由字母，数字，下划线和汉字组成！");
		txtAward.select();
		return false;
	}
	else if(txtOrder.value.replace(/ /ig,"") =="")
	{
		alert("请输入奖品编号！");
		txtOrder.focus();
		return false;
	}
	else if(txtName.value.replace(/ /ig,"") =="")
	{
		alert("请输入奖品名称！");
		txtName.focus();
		return false;
	}
	else if(!checkZYS(txtName))
	{
		alert("奖品名称只能由字母，数字，下划线和汉字组成！");
		txtName.select();
		return false;
	}
}
//添加奖项时的判断
function checkAddPerson(txtAward,txtServer,txtAccount)
{
	if(txtAward.value.replace(/ /ig,"") =="")
	{
		alert("请输入奖项！");
		txtAward.focus();
		return false;
	}
	else if(!checkZYS(txtAward))
	{
		alert("奖项只能由字母，数字，下划线和汉字组成！");
		txtBox.select();
		return false;
	}
	else if(txtServer.value.replace(/ /ig,"") =="")
	{
		alert("请输入服务器名称！");
		txtServer.focus();
		return false;
	}
	else if(!checkZYS(txtServer))
	{
		alert("服务器名称只能由字母，数字，下划线和汉字组成！");
		txtServer.select();
		return false;
	}
	else if(txtAccount.value.replace(/ /ig,"") =="")
	{
		alert("请输入获奖用户帐号！");
		txtAccount.focus();
		return false;
	}
	else if(!checkZYS(txtAccount))
	{
		alert("用户帐号只能由字母，数字，下划线和汉字组成！");
		txtAccount.select();
		return false;
	}
}
//只能输入数字
function JHshNumberText()
{
	if(!(((window.event.keyCode>=48)&&(window.event.keyCode<=57))||(window.event.keyCode==13)||(window.event.keyCode==46)||(window.event.keyCode==45)))
	{
		window.event.keyCode=0;
	}
}

//编辑奖项时的判断
function checkUpdateAward()
{
	var tr = event.srcElement.parentElement.parentElement;
	var txtAward = tr.cells[1].getElementsByTagName("input")[0];
	var txtOrder = tr.cells[2].getElementsByTagName("input")[0];
	var txtName = tr.cells[3].getElementsByTagName("input")[0];
	if(txtAward != null && txtOrder != null && txtName!=null)
	{
		if(txtAward.value.replace(/ /ig,"") == "")
		{
			alert("请输入奖项名称！");
			txtAward.focus();
			return false;
		}
		else if(!checkZYS(txtAward))
		{
			alert("奖项只能由字母，数字，下划线和汉字组成！");
			txtAward.select();
			return false;
		}
		else if(txtOrder.value.replace(/ /ig,"") =="")
		{
			alert("请输入奖品编号！");
			txtOrder.focus();
			return false;
		}
		else if(txtName.value.replace(/ /ig,"") =="")
		{
			alert("请输入奖品名称！");
			txtName.focus();
			return false;
		}
		else if(!checkZYS(txtName))
		{
			alert("奖品名称只能由字母，数字，下划线和汉字组成！");
			txtName.select();
			return false;
		}
	}
}
//更新获奖人员时的判断
function checkUpdatePerson(txtAward,txtServer,txtAccount)
{
	var tr = event.srcElement.parentElement.parentElement;
	var txtAward = tr.cells[1].getElementsByTagName("input")[0];
	var txtServer = tr.cells[2].getElementsByTagName("input")[0];
	var txtAccount = tr.cells[3].getElementsByTagName("input")[0];
	if(txtAward.value.replace(/ /ig,"") =="")
	{
		alert("请输入奖项！");
		txtAward.focus();
		return false;
	}
	else if(!checkZYS(txtAward))
	{
		alert("奖项只能由字母，数字，下划线和汉字组成！");
		txtBox.select();
		return false;
	}
	else if(txtServer.value.replace(/ /ig,"") =="")
	{
		alert("请输入服务器名称！");
		txtServer.focus();
		return false;
	}
	else if(!checkZYS(txtServer))
	{
		alert("服务器名称只能由字母，数字，下划线和汉字组成！");
		txtServer.select();
		return false;
	}
	else if(txtAccount.value.replace(/ /ig,"") =="")
	{
		alert("请输入获奖用户帐号！");
		txtAccount.focus();
		return false;
	}
	else if(!checkZYS(txtAccount))
	{
		alert("用户帐号只能由字母，数字，下划线和汉字组成！");
		txtAccount.select();
		return false;
	}
}