function AjaxRequest(){
	this.create = function(){
		if(!this.req){
			try{
				this.req = new ActiveXObject('Microsoft.XMLHTTP');				
				}
			catch(e){
				try{
					this.req= new XMLHttpRequest();
				}
				catch(e){
					try{
						this.req = new ActiveXObject('MSXML2.XMLHTTP');
						}
					catch(e){
						return false;
						}
					}
				}
			}
			return this.req;
		}	
}