//FORM VALIDATION
function show_hide(i) {
	if (document.getElementById(i).style.display == 'block') {
		document.getElementById(i).style.display = 'none';
	} else {
		document.getElementById(i).style.display = 'block';
		//document.getElementById('email').value = '';
	}
}
function isEmailAddress (string) {
	var addressPattern = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	return addressPattern.test(string);
}

function notEmptyStr(strValue) {
	var objRegExp  = /\S/;
	return objRegExp.test(strValue);
}
	
function isPhoneNumber(strValue) {
	var cleanPhone = strValue.replace(/\D/g, "")
	var tenDigits  = /\d{10}/;
	return tenDigits.test(cleanPhone);
}
function isZipCode(strValue) {
	var fiveDigits  = /^\d{5}$/;
	return fiveDigits.test(strValue);
}
function isInt(strValue) {
	var anyDigits  = /^\d+$/;
	return anyDigits.test(strValue);
}
function is3Int(strValue) {
	var anyDigits  = /^\d{3}$/;
	return anyDigits.test(strValue);
}
function is4Int(strValue) {
	var anyDigits  = /^\d{4}$/;
	return anyDigits.test(strValue);
}

function check_larger_form() {
	var error='';
	if (notEmptyStr(document.getElementById('larger_quantity').fname.value)==false) {
		error+='Please enter your first name.\r\n';
	}
	if (notEmptyStr(document.getElementById('larger_quantity').lname.value)==false) {
		error+='Please enter your last name.\r\n';
	}
	if (isEmailAddress(document.getElementById('larger_quantity').email.value)==false) {
		error+='Please enter a valid email address.\r\n';
	}	
	if (notEmptyStr(document.getElementById('larger_quantity').quantity.value)==false) {
		error+='Please enter the quantity you need.\r\n';
	}
	if (error=='') {
		document.getElementById('larger_quantity').required.value = 1;
		return true;
	} else {
		alert (error);
		return false;			
	}
}

function check_inquiry_form() {
	var error='';
	if (notEmptyStr(document.getElementById('larger_quantity').inquiry.value)==false) {
		error+='Please enter your inquiry.\r\n';
	}
	if (notEmptyStr(document.getElementById('larger_quantity').fname.value)==false) {
		error+='Please enter your first name.\r\n';
	}
	if (notEmptyStr(document.getElementById('larger_quantity').lname.value)==false) {
		error+='Please enter your last name.\r\n';
	}
	if (isEmailAddress(document.getElementById('larger_quantity').email.value)==false) {
		error+='Please enter a valid email address.\r\n';
	}
	if (error=='') {
		document.getElementById('larger_quantity').required.value = 1;
		return true;
	} else {
		alert (error);
		return false;			
	}
}

function check_contact_form() {
	var error='';
	if (notEmptyStr(document.getElementById('contact_us').fname.value)==false) {
		error+='Please enter your first name.\r\n';
	}
	if (notEmptyStr(document.getElementById('contact_us').lname.value)==false) {
		error+='Please enter your last name.\r\n';
	}
	if (isEmailAddress(document.getElementById('contact_us').email.value)==false) {
		error+='Please enter a valid email address.\r\n';
	}	
	if (error=='') {
		document.getElementById('contact_us').required.value = 1;
		return true;
	} else {
		alert (error);
		return false;			
	}
}

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_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 MM_findObj(n, d) { //v4.0
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 && document.getElementById) x=document.getElementById(n); return x;
}
function validateEmailForm(f) {
	var err ="";
	
	if (isEmailAddress(f.email_input.value)==false) {
		err+="Your Email is invalid"+"\r\n";
	}
	
	if (err!="") { 
		alert(err);
		return false;
	} else {
            return true;
        }
}