table提交获得页面数据

function saveExcel(){
var col1="";
var col2="";
var col3="";
$('#table').find('tr').each(function(){
col1=col1+($(this).find('td:first').text())+","
col2=col2+($(this).find('td:eq(1)').text())+","
col3=col3+($(this).find('td:last').text())+","
})
alert(col1);
alert(col2);
alert(col3);
fun1(col1,col2,col3);
}		 */
/* function fun1(col1,col2,col3){
$.ajax({
url:"v_downloadExcel.do",
async:true,
type:"POST",
data:{"first":col1,"second":col2,"third":col3},
dataType:"json"
})
} */