function client(id) {
	hideAll();	
	document.getElementById('client'+id).style.display = 'block';
	document.getElementById('link'+id).className = 'link cur';
}

function hideAll() {
	var anchs =  document.getElementsByTagName("*");
	var total_anchs = anchs.length;
	
	var regexp = new RegExp('\\b' + 'client' + '\\b');
	var class_items = new Array();
	for(var i=0;i<total_anchs;i++) {
		var this_item = anchs[i];
		if(regexp.test(this_item.className)) {
			this_item.style.display = '';
		}
	}
	
	var regexp = new RegExp('\\b' + 'link' + '\\b');
	var class_items = new Array();
	for(var i=0;i<total_anchs;i++) {
		var this_item = anchs[i];
		if(regexp.test(this_item.className)) {
			this_item.className = 'link';
		}
	}
}

function designSample() {
	num = Math.floor(Math.random()*7)+1;
	document.getElementById('good-design').src = '/images/good-design-'+num+'.jpg';
}

function checkForm() {
	if (document.getElementById('frm-name').value == '' || document.getElementById('frm-contact').value == '') {
		alert('Please fill in both fields');
		return false;
	} else {
		return true;
	}
}