Zwei Formulare auf einer Seite - wie unabhängig voneinander machen?

<div id="messages_product_view"><?php echo $this->getMessagesBlock()->toHtml() ?></div>  
				<div class="page-title">  
					<h1><?php echo Mage::helper('contacts')->__('Contact Us') ?></h1>  
				</div>
				<form action="<?php echo $this->getFormAction(); ?>" id="contactForm" method="post">  
					<div class="fieldset">  
						<h2 class="legend"><?php echo Mage::helper('contacts')->__('Contact Information') ?></h2>  
						<ul class="form-list">  
							<li class="fields">  
								<div class="field">  
									<label for="name" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Name') ?></label>  
									<div class="input-box">  
										<input name="name" id="name" title="<?php echo Mage::helper('core')->quoteEscape(Mage::helper('contacts')->__('Name')) ?>" value="<?php echo $this->escapeHtml($this->helper('contacts')->getUserName()) ?>" class="input-text required-entry" type="text" />  
									</div>
								</div>
								<div class="field">  
									<label for="email" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Email') ?></label>  
									<div class="input-box">  
										<input name="email" id="email" title="<?php echo Mage::helper('core')->quoteEscape(Mage::helper('contacts')->__('Email')) ?>" value="<?php echo $this->escapeHtml($this->helper('contacts')->getUserEmail()) ?>" class="input-text required-entry validate-email" type="text" />  
									</div>
								</div>
							</li>
							<li>
								<label for="telephone"><?php echo Mage::helper('contacts')->__('Telephone') ?></label>  
								<div class="input-box">  
									<input name="telephone" id="telephone" title="<?php echo Mage::helper('core')->quoteEscape(Mage::helper('contacts')->__('Telephone')) ?>" value="" class="input-text" type="text" />  
								</div>
							</li>
							<li class="wide">  
								<label for="comment" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Comment') ?></label>  
								<div class="input-box">  
									<textarea name="comment" id="comment" title="<?php echo Mage::helper('core')->quoteEscape(Mage::helper('contacts')->__('Comment')) ?>" class="required-entry input-text" cols="5" rows="3"></textarea>  
								</div>
							</li>
						</ul>
					</div>
					<div class="buttons-set">  
						<p class="required"><?php echo Mage::helper('contacts')->__('* Required Fields') ?></p>  
						<input type="text" name="hideit" id="hideit" value="" style="display:none !important;" />  
						<button type="submit" title="<?php echo Mage::helper('core')->quoteEscape(Mage::helper('contacts')->__('Submit')) ?>" class="button"><span><span><?php echo Mage::helper('contacts')->__('Submit') ?></span></span></button>  
					</div>
				</form>
				<script type="text/javascript">  
				//<![CDATA[
					var contactForm = new VarienForm('contactForm', true);  
				//]]>
				</script>

 <div class="registered-users grid12-6">  
            <div class="content">  
                <h2><?php echo $this->__('Registered Customers') ?></h2>  
                <p><?php echo $this->__('If you have an account with us, please log in.') ?></p>  
                <ul class="form-list">  
                    <li>
                        <label for="email" class="required"><em>*</em><?php echo $this->__('Email Address') ?></label>  
                        <div class="input-box">  
                            <input type="text" name="login[username]" value="<?php echo $this->escapeHtml($this->getUsername()) ?>" id="email" class="input-text required-entry validate-email" title="<?php echo Mage::helper('core')->quoteEscape($this->__('Email Address')) ?>" />  
                        </div>
                    </li>
                    <li>
                        <label for="pass" class="required"><em>*</em><?php echo $this->__('Password') ?></label>  
                        <div class="input-box">  
                            <input type="password" name="login[password]" class="input-text required-entry validate-password" id="pass" title="<?php echo Mage::helper('core')->quoteEscape($this->__('Password')) ?>" />  
                        </div>
                    </li>
                    <?php echo $this->getChildHtml('form.additional.info'); ?>  
                    <?php echo $this->getChildHtml('persistent.remember.me'); ?>  
                </ul>
                <?php echo $this->getChildHtml('persistent.remember.me.tooltip'); ?>  
                <p class="required"><?php echo $this->__('* Required Fields') ?></p>  
            </div>
            <div class="buttons-set">  
                <a href="<?php echo $this->getForgotPasswordUrl() ?>" class="f-left"><?php echo $this->__('Forgot Your Password?') ?></a>  
                <button type="submit" class="button" title="<?php echo Mage::helper('core')->quoteEscape($this->__('Login')) ?>" name="send" id="send2"><span><span><?php echo $this->__('Login') ?></span></span></button>  
            </div>
        </div>
        <?php if (Mage::helper('checkout')->isContextCheckout()): ?>  
            <input name="context" type="hidden" value="checkout" />  
        <?php endif; ?>
    </form>
    <script type="text/javascript">  
    //<![CDATA[
        var dataForm = new VarienForm('login-form', true);  
    //]]>
    </script>