var imgText_arr = new Array();
var imgCredit_arr = new Array();
var formAction = "portfolio.php";
function show()
{
document.frm.action=formAction
document.frm.submit();
}

function call(pageno) //calling when Next is clicked
{
document.frm.pageno.value = pageno;
document.frm.mode.value = "next";
document.frm.action = formAction;
document.frm.submit();
}

function call1(pageno) //calling when Previous is clicked
{
document.frm.pageno.value = pageno;
document.frm.mode.value = "prev";
document.frm.action = formAction;
document.frm.submit();
}

function changeImage(imgname,arr_ind) 
{
 document.bigimg.src=imgname;
 document.getElementById("imgText").innerHTML=imgText_arr[arr_ind];
 document.getElementById("imageCredits").innerHTML=imgCredit_arr[arr_ind];
 return false;
}