var new_win
function preview(url, width, height, title, alt) {
if (new_win_open()) {
new_win.close()
}
var append
function replace_string (find_string, replace_string) {
var temp_string = this
var left_string
var right_string
var start_location
var replace_location = temp_string.indexOf (find_string)
while (replace_location != -1) {
left_string = temp_string.left(replace_location)
right_string = temp_string.substring(replace_location + find_string.length)
temp_string = left_string + replace_string + right_string
start_location = replace_location + replace_string.length
replace_location = temp_string.indexOf (find_string, start_location)
}
return temp_string
}
function extract_left (total_chars) {
return this.substring(0, total_chars)
string.prototype.left = extract_left
string.prototype.replace = replace_string
}
var my_string = (alt)
var replaced_string = my_string.replace ("
", " " )
var append
if (my_string.indexOf ("
") != -1) {append = 35
}
else {append = 18
}
height = height + append
win_par = "width=" + (width) + ",height=" + (height)
htm = ""
htm += "" + title + "!["+ replaced_string +"](" + url + ")
"
htm += "
"+ alt +""
new_win = window.open("", "new_win", win_par)
new_win.document.open()
new_win.document.write(htm)
new_win.document.close()
function new_win_open() {
if (!new_win) {
return false
}
else if (new_win.closed) {
return false
}
else {
return true
}
}
}