// Not allow to click back button
//window.history.forward(1);

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];}
}

var checkSubmitFlg = false; 

function checkSubmit() { 
	if (checkSubmitFlg == true) { 
		return false; 
	} 
	checkSubmitFlg = true; 
	return true; 
} 

document.ondblclick = function docondblclick() { 
	window.event.returnValue = false; 
} 

document.onclick = function doconclick() { 
	if (checkSubmitFlg) { 
		window.event.returnValue = false; 
	} 
} 


function round(number,X) {
// rounds number to X decimal places, defaults to 2
    X = (!X ? 2 : X);
    return Math.round(number*Math.pow(10,X))/Math.pow(10,X);
}


var isIE = document.all?true:false;
var isNS = document.layers?true:false;
function onlyDigits(e,decReq) {
	// usage:
	//<INPUT name=txtQty TYPE=text size=6 onkeypress="onlyDigits(event,'noDec')">
	//<INPUT name=txtPrice TYPE=text size=6 onkeypress="onlyDigits(event,'decOK')">

	var key = (isIE) ? window.event.keyCode : e.which;
	var obj = (isIE) ? event.srcElement : e.target;
	var isNum = (key > 47 && key < 58) ? true:false;
	var dotOK = (key==46 && decReq=='decOK' && (obj.value.indexOf(".")<0 || obj.value.length==0)) ? true:false;
	window.event.keyCode = (!isNum && !dotOK && isIE) ? 0:key;
	e.which = (!isNum && !dotOK && isNS) ? 0:key;
	return (isNum || dotOK);
}
	
function checkEnter(event,button) {
	var code = 0;
	if (isNS)
		code = event.which;
	else
		code = event.keyCode;

	if (code==13) {
		obj = document.getElementById(button)
		
		if (obj) {
			obj.focus();
		}
		
		obj.click();

	}
}