if (document.images){

homeBtn_up = new Image
homeBtn_over = new Image
aboutusBtn_up = new Image
aboutusBtn_over = new Image
suppliesBtn_up = new Image
suppliesBtn_over = new Image
commercialBtn_up = new Image
commercialBtn_over = new Image
domesticBtn_up = new Image
domesticBtn_over = new Image
agriculturalBtn_up = new Image
agriculturalBtn_over = new Image
contactusBtn_up = new Image
contactusBtn_over = new Image

homeBtn_up.src="images/homeBtn_up.gif"
homeBtn_over.src="images/homeBtn_over.gif"
aboutusBtn_up.src="images/aboutusBtn_up.gif"
aboutusBtn_over.src="images/aboutusBtn_over.gif"
suppliesBtn_up.src="images/suppliesBtn_up.gif"
suppliesBtn_over.src="images/suppliesBtn_over.gif"
commercialBtn_up.src="images/commercialBtn_up.gif"
commercialBtn_over.src="images/commercialBtn_over.gif"
domesticBtn_up.src="images/domesticBtn_up.gif"
domesticBtn_over.src="images/domesticBtn_over.gif"
agriculturalBtn_up.src="images/agriculturalBtn_up.gif"
agriculturalBtn_over.src="images/agriculturalBtn_over.gif"
contactusBtn_up.src="images/contactusBtn_up.gif"
contactusBtn_over.src="images/contactusBtn_over.gif"

}
else
{
homeBtn_up = ""
homeBtn_over = ""
document.homeBtn = ""

aboutusBtn_up = ""
aboutusBtn_over = ""
document.aboutusBtn = ""

suppliesBtn_up = ""
suppliesBtn_over = ""
document.suppliesBtn = ""

commercialBtn_up = ""
commercialBtn_over = ""
document.commercialBtn = ""

domesticBtn_up = ""
domesticBtn_over = ""
document.domesticBtn = ""

agriculturalBtn_up = ""
agriculturalBtn_over = ""
document.agriculturalBtn = ""

contactusBtn_up = ""
contactusBtn_over = ""
document.contactusBtn = ""
}