function hide(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "none";
}

function show(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.display = "block";
}

function showhide(d) {
if(d.length < 1) { return; }
if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
else { document.getElementById(d).style.display = "none"; }
}

function ValidateContactForm()
{
	var cs_name = document.email_form.cs_name.value;
	var cs_email = document.email_form.cs_email.value;
	var cs_message = document.email_form.cs_message.value;

	
	if (cs_name == null || cs_name == "")
	{
		alert("Please enter Name");
		return false;
	}
	if ((cs_email==null)||(cs_email=="") || echeck(cs_email)==false)
	{
		alert("Please Enter your Email")
		return false;
	}
	if (cs_message == null || cs_message == "")
	{
		alert("Please enter Message");
		return false;
	}
	
	return true;
}

function ValidateCallBackForm()
{
	var cs_name = document.email_form.cs_name.value;
	var cs_phone = document.email_form.cs_phone.value;
	var cs_email = document.email_form.cs_email.value;
	var cs_time = document.email_form.cs_time.value;
	var cs_message = document.email_form.cs_message.value;

	
	if (cs_name == null || cs_name == "")
	{
		alert("Please enter Name");
		return false;
	}
	if (cs_phone == null || cs_phone == "")
	{
		alert("Please enter Phone");
		return false;
	}
	if (cs_time == null || cs_time == "")
	{
		alert("Please enter Preferred Time and Day of Week");
		return false;
	}
	if ((cs_email==null)||(cs_email=="") || echeck(cs_email)==false)
	{
		alert("Please Enter your Email")
		return false;
	}
	if (cs_message == null || cs_message == "")
	{
		alert("Please enter Message");
		return false;
	}
	
	return true;
}

function ValidateQuoteForm()
{
	var cs_name = document.email_form.cs_name.value;
	var cs_phone = document.email_form.cs_phone.value;
	var cs_email = document.email_form.cs_email.value;
	var cs_time = document.email_form.cs_time.value;
	var cs_message = document.email_form.cs_message.value;

	
	if (cs_name == null || cs_name == "")
	{
		alert("Please enter Name");
		return false;
	}
	if (cs_phone == null || cs_phone == "")
	{
		alert("Please enter Phone");
		return false;
	}
	if (cs_time == null || cs_time == "")
	{
		alert("Please enter Preferred Time and Day of Week");
		return false;
	}
	if ((cs_email==null)||(cs_email=="") || echeck(cs_email)==false)
	{
		alert("Please Enter your Email")
		return false;
	}
	if (cs_message == null || cs_message == "")
	{
		alert("Please enter Message");
		return false;
	}
	
	return true;
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Invalid Email")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid Email")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Invalid Email")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Invalid Email")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Invalid Email")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Invalid Email")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Invalid Email")
		    return false
		 }

 		 return true					
}