function create() {
        this.width = ''
        this.height = ''
        this.src = ''
        this.border = ''
}
welle = new Array()
for(var i=1; i<=5; i++) { welle[i] = new create() }

welle[1].width = "902"
welle[1].height = "261"
welle[1].src = "welle/welle_1.png"
welle[1].border = "0"

welle[2].width = "902"
welle[2].height = "261"
welle[2].src = "welle/welle_2.png"
welle[2].border = "0"

welle[3].width = "902"
welle[3].height = "261"
welle[3].src = "welle/welle_3.png"
welle[3].border = "0"

welle[4].width = "902"
welle[4].height = "261"
welle[4].src = "welle/welle_4.png"
welle[4].border = "0"

welle[5].width = "902"
welle[5].height = "261"
welle[5].src = "welle/welle_5.png"
welle[5].border = "0"

var n = Math.random() + ''
n = parseInt(n.charAt(5))
if(n >5) {
        n = n - 5
}
else if(n==0) {
        n = n + 5
}
n += ""

var image = welle[n]
var we = ""
we += '<img src="' + image.src + '" width=' + image.width
we += '\n height=' + image.height + ' border=' + image.border + '>'