viewgoods.js

jsp实现的网上购物系统

var headerCB = null;
var footerCB = null;
function headerCheckBoxCommand(o)
{
	initCBS();
	selectAllCBS(headerCB.checked);
}
function selectAllCBS(type)
{
	initCBS();
	for(var i = 0;i < cbs.length;i++)
	{
		if(type == null)
		{
			cbs[i].checked = !cbs[i].checked;
		}
		else
		{
			cbs[i].checked = type;
		}
	}
	checkHeaderAndFooter();
}
function checkHeaderAndFooter()
{
	var allChecked = true;
	var allNotChecked = true;
	for(var i = 0;i < cbs.length;i++)
	{
		if(cbs[i].checked)
		{
			allNotChecked = false;
		}
		
		if(!cbs[i].checked)
		{
			allChecked = false;
		}
	}
	if(allChecked)
	{
		headerCB.checked = true;
		//footerCB.checked = true; 
	}
	if(allNotChecked)
	{
		headerCB.checked = false;
		//footerCB.checked = false; 
	}
}
function initCBS()
{
	if(cbs.length > 0)return;
	headerCB = document.getElementById("headerCB");
	footerCB = document.getElementById("footerCB");
	var i = 0;
	while(cbs["cb" + i])
	{
		cbs[i] = document.getElementById(cbs["cb" + i]);
		i++;
	}
}
function clickCB(o)
{
	if(cbs.length == 0)initCBS();
	checkHeaderAndFooter();
}