function contactUsFormValidation(){var errors={},tmp={};tmp=$$("form *[name=name]").pop();if(tmp!=null){tmp=tmp.value.replace(/[^a-z]/ig,"");if(tmp.match(/^[a-z]{3,}$/i)==null)tmp=null;}if(tmp==null)errors.name="Please enter your full name.";tmp=$$("form *[name=comments]").pop();if(tmp!=null){tmp=tmp.value.replace(/[^a-z]/ig,"");if(tmp.match(/^[a-z]{3,}$/i)==null)tmp=null;}if(tmp==null)errors.comments="Please enter a comment.";showcontactUsFormErrors(errors);return false;}
function showcontactUsFormErrors(errors)
{
	var errDiv = new Element('div', {id:'contact-us-form-errors'}).hide(), effects=[], contactForm=$$('form')[0];

	// create effects to highlight each row that has an error
    for(field in errors)
    {
    	field = $$('input[name='+field+'], textarea[name='+field+']')[0];
        
    	if (!field.hasClassName('error'))
        {            
            effects.push(
                new Effect.Morph(field, {
                    style: 'error',
                    sync: true
                })
	        );
		}
        /*
        errDiv.appendChild(
        	new Element('p').update(errors[field.name])
        );
        */
    }
    
    var fields = $$('input, textarea').pluck('name');
    var errorFields = Object.keys(errors);
    
    if (errorFields.length > 0)
    {
        errDiv.appendChild(
        	new Element('p').addClassName('error').update("Please enter your name and comment.")
        );
	}
    
    // create effect for each field that WAS an error, but now passes validation
    fields.each(function (name) {
    	if (errorFields.include(name) || !$$('input[name='+name+'],textarea[name='+name+']')[0].hasClassName('error'))
        	return;

    	effects.push(
        	new Effect.Morph($$('input[name='+name+'], textarea[name='+name+']')[0], {
                    style: 'error',
                    sync: true,
                    transition: Effect.Transitions.reverse,
                    afterFinish: function (e) { e.element.removeClassName('error'); }
                })
        );
    });
    
    // did we have an error message displaying already? then slide it up in half the time the rest of the
    // animations will take, replace the contect with the new error messages, and slide it back down
    if (contactForm.down('div#contact-us-form-errors') != null)
    {
    	effects.push(
		    new Effect.BlindUp(contactForm.down('div'), {
            	duration: .25,
                sync: true,
                afterFinish:function (e) {
                	e.element.replace(errDiv);
                    new Effect.BlindDown(errDiv, {
                                    duration: .25
                                })
                }
			})
        );
    }
    
    // otherwise, show the new error messages
    else
    {       
	    contactForm.insert({top:errDiv});
        effects.push(
            new Effect.BlindDown(errDiv, {sync:true})
        );
	}
    
    // run all the effects that we just set up in parallel
	new Effect.Parallel(effects, {
    	duration: .5
    });
    
    // no errors found? disable the submit button and submit the form
	if (Object.keys(errors).length == 0)
    {
    	contactForm.down('button').disabled = true;
        
        if (effects.length == 0)
	        contactForm.submit();
		else
        	setTimeout('$("contactForm").submit()', 500);
    }
}