spawn application in nth desktop

spawn

#!/bin/zsh

##################################################
# Get application's window ID
#	Input:
#		$1: application's process ID
#	Output:
#	 	$1: application's window ID
#	Return value:
#		success: 0
#		failed: 1
# Usage:
#	ID=`WID $PID`
#

#these apps use a separate process to make a window)
bad=(chromium chromium-browser)

WID() {
	APP=`ps --no-header -o comm -p $1`

	# Loop windows with application's executable name
	while read WID; do
		WID=`echo $WID | awk '{print $1}'`
		# Check window's PID is matching application's PID
		if [ `xprop -id $WID _NET_WM_PID | awk '{print $3}'` -eq $1 -o \
		     `xprop -id $WID WM_CLASS | awk '{print $3}' | cut -d\" -f2` = $APP -a ${bad[(i)$APP]} -le ${#bad} ] ; then
			# Check is actual visible window
			if [ "`xwininfo -id $WID | \
				grep 'IsViewable'`" != '' ] ; then
				echo $WID
				return 0
			fi
		fi
	done < <( xwininfo -root -children 2>/dev/null | grep $APP )

	return 1
}

if [  $# -lt 2  -o  $# -gt 3  ]
then 
	echo "Usage: "$0" cmd tag [sleep]"
	exit
fi

$1 &
PID=$!
#echo $PID
#wait for the app to launch
until WID $PID
do
	sleep .2
done

wmctrl -i -r `WID $PID` -t $2