function SC() {};

var SCClass=SC.prototype;
var scClass = new SC();

SC.getTagArray = function(sTagName,oObj){
	aTagArray = null;
	oObj = (oObj) ? oObj : document;
	if(oObj.getElementsByTagName)
		aTagArray = oObj.getElementsByTagName(sTagName);
	return aTagArray;
}

SC.setAttributes = function(oObj){
	if(arguments.length > 1){
		for(var i=1; i<arguments.length; i=i+2){
			oObj[arguments[i]] = arguments[i+1];
		}
	}
}

SC.getObj = function(sObjId){ 
	var oObj = null;
  if (document.getElementById) 
      oObj = document.getElementById(sObjId);
  else if (document.all) 
      oObj = document.all[sObjId];
  else if (document.layers) 
      oObj = document.layers[sObjId];
	return oObj;
}

SC.createElement = function(sTagName){
	var oObj = document.createElement(sTagName);
	if(arguments.length > 1){
		for(var i=1; i<arguments.length; i=i+2){
			if(arguments[i] == "txt"){
				var oText = document.createTextNode(arguments[i+1]);
				oObj.appendChild(oText);		
			}else
				oObj[arguments[i]] = arguments[i+1];
		}
	}
	return oObj;
}

SC.appendElement = function(oAppendTo){
	var oAppendTo = (oAppendTo) ? oAppendTo : document.body;
	if(arguments.length > 1){
		for(var i=1; i<arguments.length; i++)
			oAppendTo.appendChild(arguments[i]);
	}
}

SC.createAppend = function(sTagName,oObj){
	var oObj = (oObj)? oObj : document.body;
	var oTagObj = document.createElement(sTagName);
	if(arguments.length > 2){
		for(var i=2; i<arguments.length; i=i+2){
			oTagObj[arguments[i]] = arguments[i+1];
		}
	}	
	oObj.appendChild(oTagObj);
}

SC.showHide = function(oObj,sDisplay){
	oObj.style.display = sDisplay;
}

String.prototype.trim=function() {
	if (this==null) return null;
	return this.trimEnd(this.trimStart());
}

String.prototype.trimEnd=function() {
	if (this==null) return null;
	var re = /((\s*\S+)*)\s*/;
	return this.replace(re, "$1");	
}

String.prototype.trimStart=function() {
	if (this==null) return null;
	var re = /\s*((\S+\s*)*)/;
	return this.replace(re, "$1");
}