var slidespeed=5000
var slideimages=new Array("/_images-nav/commercial.jpg","/_images-nav/residential.jpg")
var slidelinks1=new Array("commercial/hurricane_resistant.php","residential/e_class.php")
var slidelinks2=new Array("commercial/canopy.php","residential/architectural_series.php")
var slidelinks3=new Array("commercial/nanogel_thermal_units.php","residential/e_class_options_and_accessories.php")

var whichlink=0
var whichimage=0
var imgobj, filtersupport, blenddelay
var imageholder=new Array()
for (i=0;i<slideimages.length;i++){ //preload images
imageholder[i]=new Image()
imageholder[i].src=slideimages[i]
}

function go1(){
window.location=slidelinks1[whichlink]
}
function go2(){
window.location=slidelinks2[whichlink]
}
function go3(){
window.location=slidelinks3[whichlink]
}

function slideit(){
if (filtersupport)
imgobj.filters[0].apply()
imgobj.src=imageholder[whichimage].src
if (filtersupport)
imgobj.filters[0].play()
whichlink=whichimage
whichimage=(whichimage<slideimages.length-1)? whichimage+1 : 0
setTimeout("slideit()", slidespeed+blenddelay)
}
window.onload=function(){
imgobj=document.getElementById("slideshow") //access img obj
filtersupport=imgobj.filters //check for support for filters
blenddelay=(filtersupport)? imgobj.filters[0].duration*1000 : 0
slideit()
}