function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function newWin(url2go, title, wid, hei) {
	var newWin = window.open(url2go,title,'width=' + wid + ',height=' + hei + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,copyhistory=no,resizable=yes');
}
function newWinScrolls(url2go, title, wid, hei) {
	var newWin = window.open(url2go,title,'width=' + wid + ',height=' + hei + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=yes');
}
function newFullScreenWin(url2go) {
	var newWin = window.open(url2go, '','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=yes');
}
/**
* this method gets content of _url into the div with id='_content'
*/
function go2Link(_url) {
	if ((_url == '../pages/page.php?p=1') || (_url == '../html/home.html')) {
		changeBgImg('bg_top', '../images/bg_top_2part.jpg');
	} else {
		changeBgImg('bg_top', '../images/bg_top_1part.jpg');
	}
	// call ajax
	contact2ServerNShowResult(_url, '_content');
}
function changeBgImg(idCell, imgName) { 
	document.getElementById(idCell).style.background = "url(" + imgName + ")";
} 
/*
* Use for Select all / Clear all checkbox
*   Params: form, subname of checkbox, val: true/false
*       
*/
function checkAll(frm, curSelect, subname) {
  	for (i = 0; i < frm.elements.length; i++) {
   		ele = frm.elements[i]; 
   		if (ele.type == 'checkbox') {
   			if ((ele.name.length >= subname.length) && (ele.name.substring(0, subname.length) == subname)) {
     			if (curSelect.checked) {
     				ele.checked = true;
     			} else {
     				ele.checked = false;
     			}
   			}
		}
  	}
}
function doCheckBox(frm, subname, handleBtn) {
	anyChecked = false;
	allChecked = true;
	allCB = null;
  	for (i = 0; i < frm.elements.length; i++) {
   		ele = frm.elements[i]; 
   		if (ele.type == 'checkbox') {
   			if ((ele.name.length >= subname.length) && (ele.name.substring(0, subname.length) == subname)) {
   				key = ele.name.substring(subname.length);
   				if (key > 0) {
	     			if (ele.checked == true) {
		     			anyChecked = true;
	     			} else {
	     				allChecked = false;
	     			}
   				} else if (key == 0) {
   					allCB = ele;
   				}
   			}
		}
  	}
	handleBtn.disabled = (anyChecked == false);
	allCB.checked = ((allCB != null) && (allChecked == true));
}
function doCheckAll(frm, curSelect, subname, handleBtn) {
	checkAll(frm, curSelect, subname);
	doCheckBox(frm, subname, handleBtn);
}