// JavaScript Document
function check_form(){
if(document.getElementById('name').value=='')
{
alert("Please Insert the Name");
document.getElementById('name').focus();
return false;
}

if(document.getElementById('family').value=='')
{
alert("Please Insert the Family");
document.getElementById('family').focus();
return false;
}

if(document.getElementById('mail').value=='')
{
alert("Please Insert the E-mail");
document.getElementById('mail').focus();
return false;
}





if(document.getElementById('left_row').value=='' || document.getElementById('left_row').value==0)
{
alert("Please Insert the Left Corner");
document.getElementById('left_row').focus();
return false;
}

if(document.getElementById('left_column').value=='' || document.getElementById('left_column').value==0)
{
alert("Please Insert the Left Corner");
document.getElementById('left_column').focus();
return false;
}
if(document.getElementById('right_row').value=='' || document.getElementById('right_row').value==0)
{
alert("Please Insert the Right Corner");
document.getElementById('right_row').focus();
return false;
}
if(document.getElementById('right_column').value=='' || document.getElementById('right_column').value==0)
{
alert("Please Insert the Right Corner");
document.getElementById('right_column').focus();
return false;
}

if(document.getElementById('left_column').value > document.getElementById('right_column').value)
{
alert(" Right column must be grater than Left column");
document.getElementById('right_column').focus();
return false;
}

if(document.getElementById('left_row').value > document.getElementById('right_row').value)
{
alert("Right row must be grater than Left row ");
document.getElementById('right_row').focus();
return false;
}


if(document.getElementById('image').value=='')
{
alert("Please Insert the Image");
document.getElementById('image').focus();
return false;
}


if(document.getElementById('rent_number').value=='')
{
alert("Please Insert the Rent Time");
document.getElementById('rent_number').focus();
return false;
}



if(document.getElementById('account').checked){

if(document.getElementById('username').value=='')
{
alert("Please Insert the User name");
document.getElementById('username').focus();
return false;
}





if(document.getElementById('pass').value=='')
{
alert("Please Insert the Password");
document.getElementById('pass').focus();
return false;
}
if(document.getElementById('pass_confirm').value=='')
{
alert("Please Insert the Confirm Password");
document.getElementById('pass_confirm').focus();
return false;
}




if(document.getElementById('pass').value!=document.getElementById('pass_confirm').value)
{
alert("Please Insert the same password");
//document.getElementById('us_confirm_password').focus();
document.getElementById('pass_confirm').select();
return false;
}

}
if(document.getElementById('code').value=='')
{
alert("Please Insert the Security Code");
document.getElementById('code').focus();
return false;
}

return true;
}

function show_account(){
if(document.getElementById('account_panel').style.display=='none')
	
document.getElementById('account_panel').style.display='block';
else
document.getElementById('account_panel').style.display='none';

return true;
}


function cal_price(){
	

	
	
left_row=document.getElementById('left_row').value;	
left_column=document.getElementById('left_column').value;	
right_row=document.getElementById('right_row').value;	
right_column=document.getElementById('right_column').value;

row=right_row-left_row+1;
column=right_column-left_column+1;

if(document.getElementById('rent_time').value=='month')
y=1;
else
y=12;


document.getElementById('price').innerHTML="<font color=#FF0000>"+document.getElementById('rent_number').value * row * column * y * 9.99 +" $ &nbsp;CAD</font>";
return true;



}






function image_size(){

if(document.getElementById('left_row').value!='' && document.getElementById('left_row').value!=0)
 if(document.getElementById('left_column').value!='' && document.getElementById('left_column').value!=0)
 if(document.getElementById('right_row').value!='' && document.getElementById('right_row').value!=0)
 if(document.getElementById('right_column').value!='' && document.getElementById('right_column').value!=0)
{
row=document.getElementById('right_row').value-document.getElementById('left_row').value+1;

column=document.getElementById('right_column').value -document.getElementById('left_column').value+1;


document.getElementById('number').innerHTML="<font color=#FF0000>"+ row*column+"  </font>";

document.getElementById('size').innerHTML="<font color=#FF0000>Your image must be "+ row*25 + " pixel * " +column*25+ " pixel  </font>";
if(document.getElementById('rent_number').value!="")
cal_price();
}

return true;
	}