var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;

function ShowProduct()
{	
	var element = document.getElementById("body_content");
	element.setAttribute("style","visibility:visible");
}

function ClearText(obj,default_text)
{	
    if(obj.value == default_text)
	{
		obj.value = "";
		obj.className = "black_text";	
	}
}

function PutText(obj,default_text)
{
	if(obj.value == "")
	{
		obj.value = default_text;
	    obj.className = "gray_text";	
	}
}

function Check_Postcode(default_text)
{
	if(document.getElementById('pcode').value == ""||document.getElementById('pcode').value==default_text)
	{
		alert("Voer eerst een adres/postcode in.");
		return false;
	}
	return true;
}

function Check_Toggles(){
	if(st_swim == false && st_whirlpool == false && st_sauna == false )
	{
		alert("Kies eerst wat u wilt vinden: zwembaden, whirlpools en/of sauna's.");
		return false;
	}
	return true;	
}

function Toggle(elementname,default_text)
{
	if(!Check_Postcode(default_text))
	  return;		
	var obj = document.getElementById(elementname);
	if(obj.style.display == 'none')
	{		
		obj.style.display = 'block';
		switch(elementname)
		{
			case 'radio1':
				st_swim = true;
				break;
			case 'radio2':
				st_whirlpool = true;
				break;
			case 'radio3':
			    st_sauna = true;
		}
	}
	else
	{
	    obj.style.display = 'none';		  
		switch(elementname)
		{
			case 'radio1':
				st_swim = false;
				break;
			case 'radio2':
				st_whirlpool = false;
				break;
			case 'radio3':
			    st_sauna = false;		
		}
	}		 
	
}

function validate_email_adress(obj)
{
	var email = obj.value;
	if (email.search(emailRegEx) == -1) 
	 {
          alert("Voer een geldig email adres in.");
		  obj.value = "";
		  
     }
}