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            afoff = new Image();    afoff.src = "images/environmentproducts.gif";
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            agoff = new Image();    agoff.src = "images/hygieneproducts.gif";
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            ahoff = new Image();    ahoff.src = "images/labdiet.gif";
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            akoff = new Image();    akoff.src = "images/protectiveclothing.gif";
            alon = new Image();     alon.src = "images/testdiet2.gif";
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function load_images() {
var image1 = new Image();
aaon.src = "images/aboutips_button_down.gif";
aaoff.src = "images/aboutips_button_up.gif";
abon.src = "images/products_button_down.gif";
aboff.src = "images/products_button_up.gif";
acon.src = "images/services_button_down.gif";
acoff.src = "images/services_button_up.gif";
adon.src = "images/contactus_button_down.gif";
adoff.src = "images/contactus_button_up.gif";
aeon.src = "images/irradiation-services.gif";
aeoff.src = "images/irradiation-services2.gif";
afon.src = "images/environmentproducts2.gif";
afoff.src = "images/environmentproducts.gif";
agon.src = "images/hygieneproducts2.gif";
agoff.src = "images/hygieneproducts.gif";
ahon.src = "images/labdiet2.gif";
ahoff.src = "images/labdiet.gif";
aion.src = "images/laboratorybedding2.gif";
aioff.src = "images/laboratorybedding.gif";
ajon.src = "images/lignocel2.gif";
ajoff.src = "images/lignocel.gif";
akon.src = "images/protective_clothing2.gif";
akoff.src = "images/protective_clothing.gif";
alon.src = "images/testdiet2.gif";
aloff.src = "images/testdiet.gif";
amon.src = "images/unisorb2.gif";
amoff.src = "images/unisorb.gif";

}  //-->