Basic JS Validation

site.validate.js

if (!site || typeof(site) !== 'object') {
	var site = {};
};

site.validate = {
	init: function(){
		// bind all buttons to form validation and submission
		this.bindSubmits(false);
		if ($('form[fact]').length == 1) {
			$('form[fact] input:visible:first').focus();
		};
	},

	settings: {
		errors: false,
		elements: '#admin_form'
	},
	emailPattern: /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i,
	urlPattern:  /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/i,
	is_numeric: function(mixed_var){
		return (typeof(mixed_var) === 'number' || typeof(mixed_var) === 'string') && mixed_var !== '' && !isNaN(mixed_var);
	},
	bindSubmits: function(remove){
		var submits = $(".button.submit[vform], .tab.action.update[vform]");
		var deletes = $(".form_action.delete");

		if (remove) {
			submits.unbind('click touchend');
			deletes.unbind();
		};

		$.each(submits,function(i){
			var targetform = "#"+this.getAttribute('vform');
			$(targetform).bind('submit',function(){
				
				return site.validate.check(targetform);
			});

			$(this).bind('click touchend',function(){
				$(targetform).submit();
			});
		});

		

		deletes.live('click touchend',function(e){
			
			var ok = confirm(site.t.are_you_sure);
			if (ok) {
				return true;
			} else {
				e.preventDefault();
				return false;
			}

		});

	},
	check: function(elems) {

		if ($(elems).length !== 1) {
			//alert('Something went wrong - please contact an administrator or refresh the page to try again');
			return false;
		};

		this.settings.elements = elems;
		
		$(this.settings.elements + " :input[valid]").each(
			function(){
				
			var cval = $(this).val();
			/*var ctitle = $(this).attr("title");*/
	
			switch($(this).attr("valid")){
				case "required":
					$(this).toggleClass('error',!cval.length >=1);
					break;
				
				case "numeric":
					$(this).toggleClass('error',!site.validate.is_numeric(cval));
					break;
					
				case "email":
					$(this).toggleClass('error',!site.validate.emailPattern.test(cval));
					break;
					
				case "url":
					$(this).toggleClass('error',!site.validate.urlPattern.test(cval));
					break;
				
			}
		})		
		if ($(this.settings.elements + " .error").not("#emsg").length > 0) {
			this.settings.errors = true;
			
			//alert(site.t.errors_found);

			// is this tab active? show it if not
			var ptab = $(this.settings.elements).parent('.tab-block').attr('rel');
			site.tabcontroller.showtab(ptab);
			return false;
		}
		else {
			this.settings.errors = false;

			// var ok = confirm(site.t.are_you_sure);
			// if (!ok) {
			// 	return false;
			// };

			var action = $(this.settings.elements).attr("fact");

			$(".tab.action.update").unbind('click');
			
			$(this.settings.elements).attr("action",action);
			$(this.settings.elements).attr('onsubmit',null);	
			
			$('body').trigger('before_submit').unbind('before_submit.custom');
			$(this.settings.elements).unbind();
			$(this.settings.elements).submit();
		}
	}
}