//Common Functions

//Initialise Ajax Required
function getXmlHttpRequestObject() {
	if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		alert('Unfortunatley your browser is unable to run some aspects of this site\n.It is recommended that you upgrade your browser.');
	}
}