// var navImages = ["cancer_and_treatment", "patient_care", "research", "education_and_training", "living_beyond_cancer"];
var navImages = ["cancer_information", "patient_care", "research", "education_and_training", "living_beyond_cancer"];
for(var i=0;i<navImages.length;i++){
	cacheImage(navImages[i], "/mskcc_resources/homepage/images/on/" + navImages[i] + ".gif", "/mskcc_resources/homepage/images/off/" + navImages[i] + ".gif");
	cacheImage(navImages[i] + "_main", "/mskcc_resources/homepage/images/main/" + navImages[i] + ".jpg");
}
cacheImage("default_main", "/mskcc_resources/homepage/images/main/default.jpg");

function mainOn(ID){
	imageOn(ID);document.images.main.src = imageCache[ID + "_main"].on.src
}

function mainOff(ID){
	imageOff(ID);document.images.main.src = imageCache["default_main"].on.src
}