function array_unshift( array ) {	// Prepend one or more elements to the beginning of an array
	// 
	// +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)

	var cnt=0, tot_cnt=0, tmp_arr = {}, argc = arguments.length, argv = arguments;

	// input sanitation
	if( !array || (array.constructor !== Array && array.constructor !== Array && typeof array != 'object' && typeof array != 'array') ){
		return null;
	}

	// prepend
	for (i = 1; i< argc; i++){
		tmp_arr[cnt] = argv[i];
		cnt++; tot_cnt++;
	}

	// append original
	for(var key in array){
		if( typeof key == 'number' && isFinite( key ) ){
			// modify numeric key
			tmp_arr[cnt] = array[key];
			cnt++; tot_cnt++;
		} else{
			// save original alphanumeric key
			tmp_arr[key] = array[key];
			tot_cnt++;
		}
	}

	return tot_cnt;
}