//全选、反选定义
function CheckAll(form) {
	for (var i=0;i<form.elements.length;i++){
		var e = form.elements[i];
		if (e.name != 'chkall')       e.checked = form.chkall.checked; 
	}
}

//复选
function selectAll(chk)
{	
var chk = document.form1.chkAll.checked;
for (i=0;i<document.all.length;i++) {
if (document.all[i].name=="id[]") {
document.all[i].checked=chk;
chkRow(document.all[i]);
}}}


//复选后单元格变色
function chkRow(obj){
var r = obj.parentElement.parentElement;
if(obj.checked){ r.style.backgroundColor="#E6E9F2";}
else {if(r.rowIndex%2==1)r.style.backgroundColor="";else r.style.backgroundColor="";}
}

//去除字符串头、尾部字符串
function strtrim(str) {
var pattern = /(^\s+)$/;str = str.replace(pattern, "");var pattern = /(\s+)$/;str = str.replace(pattern, "");
return str;
}