function filter(obj){
			obj.style.opacity=0.4;obj.filters.alpha.opacity=60;
	}

	function unFilter(obj){
			obj.style.opacity=1;obj.filters.alpha.opacity=100;
	}

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_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_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 chkMandatory(){
		frm = document.contactForm;

		if( trim(frm.name.value) == '' )	{
			alert('กรุณากรอก ชื่อ');
			frm.name.focus();
			return false;
		}	


			if( trim(frm.email.value) == '' )	{
			alert('กรุณากรอก Email');
			frm.email.focus();
			return false;
		}
		else if(verifyEmail(frm.email)==false){
			frm.email.focus();
			return false;
		}	

		if( trim(frm.telNo.value) == '' )	{
			alert('กรุณากรอกเบอร์ติดต่อ');
			frm.telNo.focus();
			return false;
		}	

		if( trim(frm.comment.value) == '' )	{
			alert('กรุณากรอกข้อความ');
			frm.comment.focus();
			return false;
		}	

		frm.submit();

}

	function  clearForm(){
		frm = document.contactForm;
		frm.name.value="";
		frm.email.value="";
		frm.tel.value="";
		frm.comment.value="";
	}


function verifyEmail(email) {
	checkEmail = email.value

	if ((checkEmail.indexOf('@') < 0) || ((checkEmail.charAt(checkEmail.length-4) != '.') && (checkEmail.charAt(checkEmail.length-3) != '.')))
	{
		alert("Email ไม่ถูกรูปแบบ กรุณาลองใหม่");
		email.focus()
		return false;
	} 
	else {
		return true;
	}

}

 function trim(stringToTrim) {
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}


function fncSubmit(){
		frm = document.visitForm;

		if( trim(frm.name.value) == '' )	{
			alert('กรุณากรอก ชื่อ');
			frm.name.focus();
			return false;
		}	


			if( trim(frm.email.value) == '' )	{
			alert('กรุณากรอก Email');
			frm.email.focus();
			return false;
		}
		else if(verifyEmail(frm.email)==false){
			frm.email.focus();
			return false;
		}	

		if( trim(frm.telNo.value) == '' )	{
			alert('กรุณากรอกเบอร์ติดต่อ');
			frm.telNo.focus();
			return false;
		}	

		if( trim(frm.appDate.value) == '' )	{
			alert('กรุณาเลือกวันที่นัดหมาย');
			frm.appDate.focus();
			return false;
		}	

		if( trim(frm.project.value) == '' )	{
			alert('กรุณาเลือกโครงการ');
			frm.project.focus();
			return false;
		}	

		frm.submit();

}

	function  clearVisitForm(){
		frm = document.visitForm;
		frm.name.value="";
		frm.email.value="";
		frm.telNo.value="";
		frm.appDate.value="";
		frm.project.value="";
	}