/* ----javascript------ */
var thenow_i=0;

function chgobj_thebg(bg_var)
{
	if(bg_var>0){ thenow_i=bg_var-1; }
	if(document.getElementById(bg_obj))
	{
		var bgObj=document.getElementById(bg_obj);
		var bgUrl=theimgs[thenow_i];
		if(bg_type==0)
		{
			bgObj.style.background="url(" + bgUrl + ")";
			//bgObj.style.background="url(" + bgUrl + ") no-repeat";
		}
		else
		{
			bgObj.style.background=bgUrl;
		}
	}
}

function auto_chgbg()
{
	var thernd_num;
	if(thenow_i==theimgs.length)
	{
		thenow_i=0;
	}
	chgobj_thebg();
	thernd_num=Math.floor(Math.random()*theimgs.length);
	thenow_i=thernd_num;
	setTimeout("auto_chgbg();",rotation_time);
}

function countMail(ty)
{
	var ddlYear=document.getElementById("T_Price");
	var tSize=document.getElementById("txtSize");
	var tQuality=document.getElementById("txtQuality");
	var tTotal=document.getElementById("txtTotal");
	var ddSea=document.getElementById("C_Sea");

	if (tSize.value=="")
	{
		tSize.value="0";
	}
	if (tQuality.value=="")
	{
		tQuality.value="0";
	}

	var ddlYear_value=parseInt(ddlYear.options[ddlYear.selectedIndex].value);
	var tSize_value=parseInt(tSize.value);
	var tQuality_value=parseInt(tQuality.value);
	var tTotal_value="";

	if (isNaN(tSize_value))
	{
		return;
	}
	if (isNaN(tQuality_value))
	{
		return;
	}
	if (tSize_value<0)
	{
		alert("邮局空间大小必须大于0!");
		return;
	}
	if (tQuality_value<0)
	{
		alert("邮局用户数必须大于0!");
		return;
	}
	if (ty=="2")
	{
		if (tQuality_value>0)
		{
			tSize.value=tQuality_value*100;
			tSize_value=tQuality_value*100;
		}
	}
	else if (ty=="1")
	{
		if((tQuality_value*1024)>tSize_value)
		{
			var current_value=tQuality_value*100;
			if (tSize_value.toString().length<current_value.toString().length)
			{
				alert("您申请的邮局用户数至少需要"+tQuality_value*100+"M空间大小(注:"+tQuality_value+"用户*"+100+"M(单用户最小空间)="+tQuality_value*100+"M)!");
				return;
			}
		}
	}
	if(ddlYear_value!="")
	{
		tTotal_value=ddlYear_value*(1*tSize_value+100*tQuality_value);
		if(ddSea.checked==true)
		{
			tTotal_value = tTotal_value*1.3;
		}
		tTotal.value=Math.round(tTotal_value);
	}
}