/**
 PascalSystem Function
*/
var PS = {
	onload : function(func) {
		if (typeof this._domLoadedFunction == 'undefined')
			PS._domLoadedFunction = new Array();
		PS._domLoadedFunction.push(func);
		document.observe("dom:loaded", PS._onload);
	},
	substr : function(strVal, startIndex, lengthSubstring) {
		strVal = strVal.toString();
		if (typeof lengthSubstring == 'undefined')
			lengthSubstring = false;
		if (typeof strVal.substr == 'function') {
			if (lengthSubstring)
				return strVal.substr(startIndex, lengthSubstring);
			return strVal.substr(startIndex);
		}
		var strLen = strVal.length;
		if (strLen<startIndex)
			return '';
		var buildStr = '';
		for (var i=startIndex;i<strLen;i++) {
			if (i>startIndex+lengthSubstring)
				return buildStr;
			buildStr+= strVal[i];
		}
		return buildStr;
	},
	evalJsOnContent : function(content) {
		if (typeof content == 'string')
			content = document.getElementById(content);
		if (!content) return;
		var scripts = content.getElementsByTagName('script');
		for (var i=0;i<scripts.length;i++) {
			eval(scripts[i].innerHTML);
		}
	},
	overlayElement : function(element) {
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (!element) return;
		element._psoverlay = document.createElement('div');
		element._psoverlay.className = 'pascalsystem-overlay';
		if (element.className && element.className.toString().length>0) {
			element._psoverlay.className+= ' pascalsystem-'+element.className.toString().split(' ').join(' pascalsystem-');
		}
		if (element.id && element.id.toString().length>0) {
			element._psoverlay.id+= 'pascalsystem-'+element.id.toString();
		}
		element._psoverlay.style.display = 'none';
		element._psoverlay.style.position = 'absolute';
		var temps = element.getElementsByTagName('*');
		if (temps.length) {
			element.insertBefore(element._psoverlay, temps[0]);
		} else {
			element.appendChild(element._psoverlay);
		}
		var dimm = $(element).getDimensions();
		element._psoverlay.style.width = dimm.width.toString()+'px';
		element._psoverlay.style.height = dimm.height.toString()+'px';
		element._psoverlay.style.display = 'block';
		return true;
	},
	unOverlayElement : function(element) {
		return;
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (!element) return;
		if (typeof element._psoverlay == 'undefined') return;
		element._psoverlay.style.display = 'none';
		element._psoverlay.parentNode.removeChild(element._psoverlay);
		element._psoverlay = false;
		return true;
	},
	eachFunc : function(selector, funcRef) {
		if (typeof selector == 'string') {
			selector = $$(selector);
		}
		for (var i=0;i<selector.length;i++) {
			if (typeof funcRef == 'string') {
				selector[i].funcRef();
			} else {
				funcRef(selector[i]);
			}
		}
	},
	extendConfig : function(baseConfObj, config) {
		for (var key in config) {
			if (typeof baseConfObj[key] == 'undefined') {
				baseConfObj[key] = config[key];
				continue;
			}
			if ((typeof config[key] == 'object') && (typeof config[key].length == 'undefined')) {
				PS.extendConfig(baseConfObj[key], config[key]);
				continue;
			}
			baseConfObj[key] = config[key];
		}
	},
	_onload : function() {
		if (typeof PS._domLoadedFunction == 'undefined')
			return;
		var funcRef;
		for (var i=0;i<PS._domLoadedFunction.length;i++) {
			funcRef = PS._domLoadedFunction[i];
			if (typeof funcRef == 'function') {
				funcRef();
			}
		}
		setEvents();
	}
};
/**
 PascalSystem Ajax function
*/
PS.ajax = {
	call : function(url, blocks) {
		var isQuery = ((url.length>0) && (url[0]=='?') || (url.indexOf('?')>0))?true:false;
		var params = {};
		for (var key in blocks) {
			params['pascalsystem'+key] = blocks[key];
		}
		var obj = new Ajax.Request(url,{
			method:'get',
			requestHeaders: params,
			onSuccess: function(transport){
				var response = transport.responseText || "";
				var data = eval('('+response+')');
				var selector;
				var html;
				var destEls;
				var regs;
				var replaceElement = false;
				var destEl; var srcEl;
				var temp;
				for (var blockName in data) {
					selector = data[blockName].selector;
					regs = selector.split('|');
					replaceElement = false;
					if (regs.length>1) {
						selector = regs[0];
						replaceElement = regs[1];
					}
					destEls = $$(selector);
					if (!destEls.length) continue;
					if (replaceElement) {
						destEls = $(destEls[0]).getElementsBySelector(replaceElement);
						if (!destEls.length) continue;
						temp = document.createElement('div');
						temp.innerHTML = data[blockName].html;
						srcEl = $(temp).getElementsBySelector(replaceElement);
						if (!srcEl.length) continue;
						srcEl = srcEl[0];
						destEls[0].style.display = 'none';
						destEls[0].parentNode.insertBefore(srcEl, destEls[0]);
						destEls[0].parentNode.removeChild(destEls[0]);
						temp = null;
						destEl = destEls[0];
					} else {
						destEl = destEls[0];
						destEl.innerHTML = data[blockName].html;
					}
					PS.evalJsOnContent(destEl);
				}
				PS._onload();
			}
		});
	}
};