JS object arrays to table

objecttable.js

function tableFromObjectArray(arr) {
	var tStr = "<table>";
	tStr+="<thead><tr>";
	for(prop in arr[0]) {
		tStr+="<td>"+prop+"</td>";
	}
	tStr+="</tr></thead>";
	for(var i=0;i<arr.length;i++) {
		tStr+="<tr>";
			for(prop in arr[i]) {
				tStr+="<td>";
					tStr+=arr[i][prop];
				tStr+="</td>";
			}
		tStr+="</tr>";
	}
	tStr+="</table>";
	return tStr;
}