var preImages = new Array()

function loadImages() { 
	for (i = 0; i < yourImages.length; i++) { 
		preImages[i] = new Image()
		preImages[i].src = yourImages[i]
	}
}

if (document.images) {
	
    m1_cold = new Image();
	m1_cold.src = 'images/02_02.jpg'
	m1_hot = new Image();
	m1_hot.src = 'images/02_hot_02.jpg'
	
    m2_cold = new Image();
	m2_cold.src = 'images/02_03.jpg'
	m2_hot = new Image();
	m2_hot.src = 'images/02_hot_03.jpg'	

    m3_cold = new Image();
	m3_cold.src = 'images/02_04.jpg'
	m3_hot = new Image();
	m3_hot.src = 'images/02_hot_04.jpg'

    m4_cold = new Image();
	m4_cold.src = 'images/04_02.jpg'
	m4_hot = new Image();
	m4_hot.src = 'images/04_hot_02.jpg'

    m5_cold = new Image();
	m5_cold.src = 'images/04_03.jpg'
	m5_hot = new Image();
	m5_hot.src = 'images/04_hot_03.jpg'
}

function hot() {
	var img = hot.arguments;
	for (var i=0; i<img.length; i+=1) {
    	  eval( 'document.getElementById("' + img[i] + '").src = ' + img[i]  + '_hot.src' ) ; 
	}
}

function cold() {
	var img = cold.arguments;
	for (var i=0; i<img.length; i+=1) {
    	  eval( 'document.getElementById("' + img[i] + '").src = ' + img[i]  + '_cold.src' ) ; 
	}
}