var currentdate = 0
var core = 0

function StringArray (n) {
  this.length = n;
  for (var i =1; i <= n; i++) {
    this[i] = ' '

  }
}

image = new StringArray(5)
image[1] = 'images/pic1.gif'
image[2] = 'images/pic2.gif'
image[3] = 'images/pic3.gif'
image[4] = 'images/pic4.gif'
image[5] = 'images/pic5.gif'

function ranimage() {
	random_num = (Math.round((Math.random()*4)+1))
    return(image[random_num])
}
	
image2 = new StringArray(4)
image2[1] = 'images/pic6.gif'
image2[2] = 'images/pic7.gif'
image2[3] = 'images/pic8.gif'
image2[4] = 'images/pic9.gif'

function ranimage2() {
	random_num2 = (Math.round((Math.random()*3)+1))
    return(image2[random_num2])
}
	
image3 = new StringArray(4)
image3[1] = 'images/pic10.gif'
image3[2] = 'images/pic11.gif'
image3[3] = 'images/pic12.gif'
image3[4] = 'images/pic13.gif'

function ranimage3() {
	random_num3 = (Math.round((Math.random()*3)+1))
    return(image3[random_num3])
}
	
image4 = new StringArray(4)
image4[1] = 'images/pic14.gif'
image4[2] = 'images/pic15.gif'
image4[3] = 'images/pic16.gif'
image4[4] = 'images/pic17.gif'

function ranimage4() {
	random_num4 = (Math.round((Math.random()*3)+1))
    return(image4[random_num4])
}