Reuse function misunderstanding

[Jptalon]

Hello everyone. I am stuck and have exhausted all my resources on this lol. I couldn't possibly list everything I have tried. I have a misunderstanding about how to get my function to work properly with the IF statement inside it. What I am trying to do is have two select boxes with 5 options of colors. One box will change the background color and the other will change the font color. I have been able to make the colors change but I need it to be done in 1 function. Here is where my problem starts. I cannot get the IF statement to work accordingly to the select box being used. I am pretty sure that my condition for the IF itself is the whole problem. If some could help me understand where I went wrong and why, maybe point to some material I have not found too. Thanks

HTML:

<select id="background" class="select" onChange="changeColor("background")">
            <option value='#B40404'>red</option>
	    <option value='#FFFFFF'>white</option>
            <option value='#0404B4'>blue</option>
            <option value='#298A08'>green</option>
            <option value='#FFFF00'>yellow</option>
</select>
<select id="font" class="select" onChange="changeColor("font")">
            <option value='1'>red</option>
	    <option value='2'>white</option>
            <option value='3'>blue</option>
            <option value='4'>green</option>
            <option value='5'>yellow</option>
</select>

JavaScript:

function changeColor(object) {
var background = document.getElementById("background");
var font = document.getElementById("font");
var colors = new Array();
var allElems = document.getElementsByTagName("*");

	if (background == "background"){
		for (var i = 0; i < allElems.length; i++){
			if (allElems[i].className == "body") colors.push(allElems[i]);
		}
		var bg = (background.options[background.selectedIndex].value);
		if (bg) {
			document.getElementsByTagName("body")[0].style.backgroundColor = bg;
		}
		alert("The background color has changed to "+bg)
	} else if (object == "font"){
		for (var i = 0; i < allElems.length; i++){
			if (allElems[i].className == "body") colors.push(allElems[i]);
		}
		var bg = (font.options[font.selectedIndex].value);
		if (bg) {
			document.getElementsByTagName("body")[0].style.backgroundColor = bg;
		}
		alert("The color has changed to "+bg)
	}
}}

[Jptalon]

I was able to figure it out. Thank you