// Funcion que abre otra ventana con una imagen 
var mywindow; 
function openWindow (page,type){ 
var sizeString; 
if (type==1){ 
sizeString="width=650, height=300" 
} 
else if (type==2){ 
sizeString="width=350, height=450" 
} 
else if (type==3){ 
sizeString="width=400, height=350" 
} 

else if (type==4){ 
sizeString="width=800 height=580" 
} 
else if (type==5){ 
sizeString="width=400, height=260" 
} 
else if (type==6){ 
sizeString="width=500, height=600" 
} 
else{ 
sizeString="width=475, height=690" 
} 

mywindow=open(page,"ventana", sizeString) 

}