function getPosition(obj){
    var topValue= 0,leftValue= 0;
    while(obj){
	leftValue+= obj.offsetLeft;
	topValue+= obj.offsetTop;
	obj= obj.offsetParent;
    }
    finalvalue = leftValue + "," + topValue;
    return finalvalue;
}

function getElementsByClass( searchClass, domNode, tagName) {
	if (domNode == null) domNode = document;
	if (tagName == null) tagName = '*';
	var el = new Array();
	var tags = domNode.getElementsByTagName(tagName);
	var tcl = " "+searchClass+" ";
	for(i=0,j=0; i<tags.length; i++) {
		var test = " " + tags[i].className + " ";
		if (test.indexOf(tcl) != -1)
			el[j++] = tags[i];
	}
	return el;
}