/* Toogle text
---------------------------------------------------------------- */

var field = function(){
	return {
		focus:function(f,txt){
			if(f.value==txt){
				f.value='';
			}else{
				f.select();
			}
		},
		blur:function(f,txt){
			if(f.value==''){
				f.value=txt;
			}
		}
	};
}();


/* Link function
---------------------------------------------------------------- */

var url = function(){
	return {
		href:function(){
			var m = document.getElementById('content');
			var sa = m.getElementsByTagName('a');
			var current = sa.length;
			for(var d=0;d<current;d+=1){
				sa[d].target = '_blank';
			}
		}
	};
}();


/* Select drop down
---------------------------------------------------------------- */

var block = function(){
	return {
		show:function(f){
			var obj = document.getElementById(f);
			if(obj){obj.style.display = 'block';}
		},
		hide:function(f){
			setTimeout("block.delay('"+f+"');", 400);
		},
		delay:function(f){
			var obj = document.getElementById(f);
			if(obj){obj.style.display = 'none';}
		},
		select:function(f){
			var obj = document.getElementById('blockinp');
			if(obj){obj.value = f.innerHTML;}
			ajax.load(f.href,'content',true);
		},
		gotop:function(f){
			ajax.load(f.href,'content',true);
		}
	};
}();


/* Link changer
---------------------------------------------------------------- */

var change = function(){
	return {
		links:function(f){
			var obj = document.getElementById(f);
			if(obj){obj.style.display = 'block';}
		}
	};
}();


/* Ajax
---------------------------------------------------------------- */

var ajax = function(){
	return {
		nocache:function(){
			var minutes = 1000 * 60;
			var hours = minutes * 60;
			var days = hours * 24;
			var years = days * 365;
			var d = new Date();
			var t = d.getTime();
			return t;
		},
		load:function(url,container,load){
			var obj = document.getElementById(container);
			var loader = '<div class="loading"></div>';
			if(obj && url){
				if(load){obj.innerHTML = loader;}
				ajax.page(url,container);
			}
		},
		page:function(url,container){
			var _url,_no;
			if(url.indexOf("?")==-1){_no = '?~' + ajax.nocache();}else{_no = '&~' + ajax.nocache();}
			_url = url + _no;
			
			if(window.XMLHttpRequest){
				page_request = new XMLHttpRequest();
			}else if(window.ActiveXObject){
				try{
					page_request = new ActiveXObject('Msxml2.XMLHTTP');
				}catch(e){
					try{
						page_request = new ActiveXObject('Microsoft.XMLHTTP');
					}catch(e){}
				}
			}else{
				return false;
			}

			page_request.onreadystatechange = function(){
				ajax.parse(page_request,container);
			}
			page_request.open('GET', _url, true);
			page_request.send(null);
		},
		parse:function(page_request,container){
			if(page_request.readyState==4 && (page_request.status==200 || window.location.href.indexOf('http')==-1)){
				document.getElementById(container).innerHTML = page_request.responseText;
				ajax.completed();
			}
		},
		completed:function(){
			// After complete functions here..
			setTimeout("url.href();", 500);
		}
	};
}();


/* Dark layer
---------------------------------------------------------------- */

var darken = function(){
	return {
		create:function(){
			var dark = document.getElementById('layerdark');
			if(!dark){
				var dot = document.createElement("div");
				dot.id = 'layerdark';
				dot.style.opacity = 0.5;
				dot.style.filter = 'alpha(opacity=50)';
				dot.style.width = '100%';
				dot.style.height = '100%';
				dot.style.position = 'absolute';
				dot.style.zIndex = '1000';
				dot.style.backgroundColor = '#000000';
				dot.style.left = '0px';
				dot.style.top = '0px';
				dot.onclick = function(){darken.kill();}
				document.body.appendChild(dot);
			}
		},
		show:function(){
			darken.create();
			var dark = document.getElementById('layerdark');
			var height = document.documentElement.scrollHeight;
			if(dark){
				dark.style.height = height + 'px';
				dark.style.display = 'block';
			}
		},
		fixed:function(){
			var dark = document.getElementById('layerdark');
			var height = document.documentElement.scrollHeight;
			if(dark){
				dark.style.height = height + 'px';
			}
		},
		kill:function(){
			var dark = document.getElementById('layerdark');
			if(dark){dark.style.display = 'none';}
		}
	};
}();


/* Validation
---------------------------------------------------------------- */

var validate = function(){
	var execute = true;
	return {
		err:function(step,f){
			var obj = document.getElementById(f);
			if(obj){
				if(step=='1'){obj.style.backgroundColor = '#ffabab';setTimeout("validate.err('2','"+f+"');", 50);}
				if(step=='2'){obj.style.backgroundColor = '#ffc5c5';setTimeout("validate.err('3','"+f+"');", 50);}
				if(step=='3'){obj.style.backgroundColor = '#ffdfdf';setTimeout("validate.err('4','"+f+"');", 50);}
				if(step=='4'){obj.style.backgroundColor = '#fef1f1';setTimeout("validate.err('5','"+f+"');", 50);}
				if(step=='5'){obj.style.backgroundColor = '#fff';}
			}
		},
		email:function(str){
			var filter = /^[^\s@]+@[^\s@]+\.[a-z]{2,6}$/i;
			if(filter.test(str)){return true;}else{return false;}
		},
		empty:function(str){
			var filter = /^\s+$/;
			var expression;
			if(filter.test(str) || str==''){expression = false;}else{expression = true;}
			return expression;
		},
		onlynumbers:function(evt){
			var charCode = (evt.which) ? evt.which : event.keyCode;
			if(charCode > 31 && (charCode < 48 || charCode > 57)){return false;}else{return true;}
		},
		dummy:function(f){
			if(!validate.email(f.field1.value)){
				execute = false;
				validate.err('1',f.field1.id);
			}
			if(!validate.empty(f.field2.value)){
				execute = false;
				validate.err('1',f.field2.id);
			}
			return execute;
		}
	};
}();


/* Window events
---------------------------------------------------------------- */

window.onresize = function(){
	//darken.fixed();
}