function CheckForm()
{
	regform = document.getElementById('regform');
  if (regform.name.value.length < 2)
  {
    regform.name.focus();
    alert('You must enter first name');
    return false;
  }

if (regform.login.value.length < 2)
  {
    regform.login.focus();
    alert('You must enter login');
    return false;
  }

  if (regform.name2.value.length < 2)
  {
    regform.name2.focus();
    alert('You must enter last name');
    return false;
  }

  if (regform.email.value.length < 5)
  {
    regform.email.focus();
    alert('You must enter Email');
    return false;
  }

  if (regform.phone.value.length < 5)
  {
    regform.phone.focus();
    alert('You must enter phone.');
    return false;
  }
  
  if ((regform.psw.value.length < 5) || (regform.psw.value.length > 20))
  {
    regform.psw.focus();
    alert('Password must be from 5 to 20 characters');
    return false;
  }

  if (regform.psw.value != regform.psw2.value)
  {
    regform.psw2.focus();
    alert('Password and 2nd password are different');
    return false;
  }

  if (regform.usastate.value == '-')
  {
    alert('You must select State');
    return false;
  }

  if (regform.city.value.length < 3)
  {
    regform.city.focus();
    alert('You must enter city.');
    return false;
  }

  if (regform.street.value.length < 3)
  {
    regform.street.focus();
    alert('You must enter street and apartment.');
    return false;
  }

  if (regform.zip.value.length < 5)
  {
    regform.zip.focus();
    alert('You must enter ZIP code.');
    return false;
  }

  return true;
}

function checkOrder()
{
for(i=0;i<document.orderFrm.elements.length;i++)
{
name=document.orderFrm.elements[i].name;
if (name.lastIndexOf("amount")>=0)
	{
		if (isNaN(document.orderFrm.elements[i].value))
		{
			alert("Some fields contains non numeric values!");
			document.orderFrm.elements[i].select();
			document.orderFrm.elements[i].focus();
			return false;
		}
	}
}
return true;
}

function doresize()
{
	if (document.getElementById("left").clientWidth > 351)
		{
		document.getElementById("left").style.background="url(images/header_left.jpg) left top no-repeat";
			}
		else
		{
		document.getElementById("left").style.background="url(images/header_left.jpg) right top no-repeat";
		}	
		if (document.getElementById("right").clientWidth > 524)
		{
		document.getElementById("right").style.background="url(images/header_03.jpg) right top no-repeat";
			}
		else
		{
		document.getElementById("right").style.background="url(images/header_03.jpg) left top no-repeat";
		}	
		
}