/*************************************

add_new(page)
del_item(page)
goto_page(page, id)
function go_back(path, pg_num)
order(page, field)
checkbox_select_all(num)
checkbox_del_id()

*************************************/


function add_new(page)
{

	fr = document.frm
	
	fr.method = "post";
	fr.target = "_self";
	fr.action = "../main/main.php?func_pg=" + page;
	fr.submit()

}
	
function del_item(page, num)
{

	fr = document.frm
	
	checkbox_del_id(num);
	
	if (fr.del_id.value == '')
	{
		alert("請先選擇刪除項目")
		return
		
	}

	if (confirm("確定刪除?"))
	{
		
		fr.act.value = 4
		
		fr.method = "post";
		fr.target = "_self";
		fr.action = "../main/main.php?func_pg=" + page;
		fr.submit()			
				
	}

}
	
function goto_page(page, id)
{

	fr = document.frm
	
	fr.method = "post";
	fr.target = "_self";
	fr.action = "../main/main.php?func_pg=" + page + "&id=" + id;
	fr.submit()

}


function go_back(path, pg_num)
{

	window.location = "../main/main.php?func_pg=" + path + "&pg_num=" + pg_num

}

	
function order(page, field)
{

	fr = document.frm

	if (fr.order_by.value == field){
		
		if (fr.ascend.value == '')
			fr.ascend.value = 'desc'
		else
			fr.ascend.value = ''
		
	}else
		fr.ascend.value = ''
	
	fr.order_by.value = field

	fr.method = "post";
	fr.target = "_self";	
	fr.action = "../main/main.php?func_pg="+page;
	fr.submit()

}
	
	
function checkbox_select_all(num)
{

	fr = document.frm
		
	if (fr.select_all.checked == true)
	{
	
		for (i=0; i<num; i++)
		{

			if (fr['cb_'+i])
			{
				fr['cb_'+i].checked = true
									
			}
		
		}
		
	}
	else
	{
	
		for (i=0; i<num; i++)
		{

			if (fr['cb_'+i])
			{
				fr['cb_'+i].checked = false
				
			}
		
		}
				
	}
	
	

}

function checkbox_del_id(num)
{

	fr = document.frm

	fr.del_id.value = ""

	for (i=0; i < num; i++)
	{

		if (fr['cb_'+i])
		{
		
			if(fr['cb_'+i].checked == true)
			{
				fr.del_id.value = fr.del_id.value + fr['cb_'+i].value + ','
			}
			
		}
	
	}	

}